diff --git a/data/corefork.telegram.org/constructor/contacts.importedContacts b/data/corefork.telegram.org/constructor/contacts.importedContacts
index 088c4639f4..e41494e7a3 100644
--- a/data/corefork.telegram.org/constructor/contacts.importedContacts
+++ b/data/corefork.telegram.org/constructor/contacts.importedContacts
@@ -89,7 +89,7 @@
 <p><a href="/type/contacts.ImportedContacts">contacts.ImportedContacts</a></p>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
   
 </div>
           
diff --git a/data/corefork.telegram.org/constructor/decryptedMessage.html b/data/corefork.telegram.org/constructor/decryptedMessage.html
index 24ded47065..c8a65e83c9 100644
--- a/data/corefork.telegram.org/constructor/decryptedMessage.html
+++ b/data/corefork.telegram.org/constructor/decryptedMessage.html
@@ -137,7 +137,7 @@
 <p>Setting of a message lifetime after reading.</p>
 <p>Upon receiving such message the client shall start deleting of all messages of an encrypted chat <strong>ttl_seconds</strong> seconds after the messages were read by user.</p>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p>
 <h4><a class="anchor" href="#styled-text-with-message-entities" id="styled-text-with-message-entities" name="styled-text-with-message-entities"><i class="anchor-icon"></i></a><a href="/api/entities">Styled text with message entities</a></h4>
 <p>How to create styled text with message entities</p>
 <h4><a class="anchor" href="#uploading-and-downloading-files" id="uploading-and-downloading-files" name="uploading-and-downloading-files"><i class="anchor-icon"></i></a><a href="/api/files">Uploading and Downloading Files</a></h4>
diff --git a/data/corefork.telegram.org/constructor/decryptedMessageActionNotifyLayer.html b/data/corefork.telegram.org/constructor/decryptedMessageActionNotifyLayer.html
index ff348f28d1..9be5be3a9c 100644
--- a/data/corefork.telegram.org/constructor/decryptedMessageActionNotifyLayer.html
+++ b/data/corefork.telegram.org/constructor/decryptedMessageActionNotifyLayer.html
@@ -75,7 +75,7 @@
 <p><a href="/type/DecryptedMessageAction">DecryptedMessageAction</a></p>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
   
 </div>
           
diff --git a/data/corefork.telegram.org/constructor/decryptedMessageLayer.html b/data/corefork.telegram.org/constructor/decryptedMessageLayer.html
index ff1028a1ce..e519d25b20 100644
--- a/data/corefork.telegram.org/constructor/decryptedMessageLayer.html
+++ b/data/corefork.telegram.org/constructor/decryptedMessageLayer.html
@@ -97,7 +97,7 @@
 <h4><a class="anchor" href="#decryptedmessage" id="decryptedmessage" name="decryptedmessage"><i class="anchor-icon"></i></a><a href="/constructor/decryptedMessage">decryptedMessage</a></h4>
 <p>Contents of an encrypted message.</p>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
   
 </div>
           
diff --git a/data/corefork.telegram.org/constructor/decryptedMessageMediaAudio.html b/data/corefork.telegram.org/constructor/decryptedMessageMediaAudio.html
index 1965b24b11..00ae04942e 100644
--- a/data/corefork.telegram.org/constructor/decryptedMessageMediaAudio.html
+++ b/data/corefork.telegram.org/constructor/decryptedMessageMediaAudio.html
@@ -98,7 +98,7 @@
 <p><a href="/type/DecryptedMessageMedia">DecryptedMessageMedia</a></p>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
   
 </div>
           
diff --git a/data/corefork.telegram.org/constructor/decryptedMessageMediaVideo.html b/data/corefork.telegram.org/constructor/decryptedMessageMediaVideo.html
index 59f907f808..014e1466b0 100644
--- a/data/corefork.telegram.org/constructor/decryptedMessageMediaVideo.html
+++ b/data/corefork.telegram.org/constructor/decryptedMessageMediaVideo.html
@@ -131,7 +131,7 @@
 <p><a href="/type/DecryptedMessageMedia">DecryptedMessageMedia</a></p>
 <h3><a class="anchor" href="#related-pages" id="related-pages" name="related-pages"><i class="anchor-icon"></i></a>Related pages</h3>
 <h4><a class="anchor" href="#layers" id="layers" name="layers"><i class="anchor-icon"></i></a><a href="/api/layers">Layers</a></h4>
-<p>Below you will find information on scheme changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
+<p>Below you will find information on schema changes. For more details on the use of layers, see <a href="/api/invoking#layers">Invoking API methods</a>.</p></div>
   
 </div>
           
diff --git a/data/promote.telegram.org.html b/data/promote.telegram.org.html
new file mode 100644
index 0000000000..8333a2a2e1
--- /dev/null
+++ b/data/promote.telegram.org.html
@@ -0,0 +1,202 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>Telegram Ads</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
+<meta name="format-detection" content="telephone=no" />
+<meta http-equiv="X-UA-Compatible" content="IE=edge" />
+<meta name="MobileOptimized" content="176" />
+<meta name="HandheldFriendly" content="True" /><meta property="og:title" content="Telegram Ad Platform">
+<meta property="og:description" content="Telegram provides a free and secure messaging service for more than 500 million monthly active users around the world. In…">
+
+    <link rel="icon" type="image/svg+xml" href="/img/website_icon.svg?4">
+<link rel="alternate icon" href="/favicon.ico?4" type="image/x-icon" />
+    <script>document.cookie="stel_dt="+encodeURIComponent((new Date).getTimezoneOffset())+";path=/;max-age=31536000;samesite=None;secure"</script>
+    
+    <link href="https://fonts.googleapis.com/css?family=Roboto:400,500,700" rel="stylesheet" type="text/css">
+    <link href="/css/bootstrap.min.css?3" rel="stylesheet">
+    <link href="/css/bootstrap-extra.css?2" rel="stylesheet">
+    <link href="/css/telegram.css?212" rel="stylesheet">
+    <link href="/css/widget-frame.css?46" rel="stylesheet">
+<link href="/css/promote.css?40" rel="stylesheet">
+<link href="/css/jquery-ui.min.css" rel="stylesheet">
+<link href="/css/tchart.min.css?10" rel="stylesheet">
+
+  </head>
+  <body class="emoji_image no-transition">
+    
+    <div id="aj_progress" class="progress-bar"></div>
+    
+    <div id="aj_content"><div class="ads-container ads-main">
+  <section class="ads-content">
+    <div class="ads-main-content">
+      <img class="ads-main-img" src="/img/ads_intro.svg" width="134" height="212">
+      <div id="dev_page_content_wrap" class=" ">
+  <div class="dev_page_bread_crumbs"></div>
+  <h1 id="dev_page_title">Telegram Ad Platform</h1>
+  
+  <div id="dev_page_content"><p>Telegram provides a <strong>free and secure</strong> messaging service for more than <strong>500 million monthly active users</strong> around the world. In addition to sending private messages and chatting in private groups, Telegram users can subscribe to <a href="https://telegram.org/tour/channels"><strong>public one-to-many channels</strong></a>.</p>
+<p>Every month, Telegram users generate over <strong>500 billion views</strong> in one-to-many channels.</p>
+<div class="ads-main-button-wrap">
+  <a href="/auth" class="btn ads-btn login-link">Log In</a>
+</div>
+
+<p><div class="ads-main-additional"></p>
+<h3>Advertising on Telegram</h3>
+<p>Sponsored messages on Telegram are displayed in <strong>large public one-to-many channels</strong> with <strong>1000+</strong> subscribers and are limited to <strong>160 characters</strong>. Sponsored Messages are based solely on the <strong>topic</strong> of the public channels in which they are shown.</p>
+<p>This means that <strong>no user data</strong> is mined or analyzed to display ads, and every user viewing a particular channel on Telegram sees <strong>the same sponsored messages</strong>.</p>
+<div class="blog_video_player_wrap" style="max-width: 400px; margin: 20px auto 20px;">
+ <video class="blog_video_player tl_blog_vid_autoplay" onclick="videoTogglePlay(this)" autoplay loop controls muted poster="/file/464001900/2/btuJiD_Plu8.202414/7e06161d5568f0720f" style="max-width: 400px;" title="Sponsored Messages on Telegram" alt="Sponsored Messages on Telegram">
+  <source src="/file/464001301/3/Re8p47eQMuY.4017265.mp4/4ee8f9f931d15f312a" type="video/mp4">
+ </video>
+</div>
+
+<h3>Context-based advertising</h3>
+<p>Advertisers can choose the <strong>language</strong> and approximate <strong>topics</strong> of channels where their ads will be displayed. It is also possible to choose <strong>specific channels</strong> where a certain ad will be shown – or add specific channels where it will <em>not</em> be displayed.</p>
+<p>This allows advertisers to serve <strong>precise and efficient</strong> ads while <strong>preserving user privacy</strong>.</p>
+<h3>Privacy-conscious ads</h3>
+<p>Unlike other apps, Telegram <strong>doesn&#39;t track</strong> whether users tap on a sponsored message and doesn&#39;t profile them based on their activity. We also <strong>prevent external links</strong> in sponsored messages to ensure that third parties can’t spy on our users. We believe that everyone has the right to privacy, and technological platforms should respect that.</p>
+<h3>Revenue sharing with channel owners</h3>
+<p>Sponsored Messages are currently in test mode. Once they are fully launched and allow Telegram to cover its basic costs, we will start sharing ad revenue with the owners of public channels in which sponsored messages are displayed.</p>
+<h3>Getting started</h3>
+<p>Telegram welcomes all responsible advertisers. Anyone can study Telegram&#39;s <a href="https://promote.telegram.org/guidelines">Ad Policies and Guidelines</a>, <strong>create an account</strong> on the Ad Platform and <strong>try out the interface</strong>. For a detailed overview of the platform, see <a href="https://promote.telegram.org/getting-started">this guide</a>.</p>
+<p></div></p>
+<div class="ads-main-button-wrap">
+  <a href="/auth" class="btn ads-btn login-link">Log In</a>
+</div>
+</div>
+  
+</div>
+    </div>
+  </section>
+</div><div class="popup-container login-popup-container hide" id="login-popup-container">
+  <div class="popup">
+    <div class="popup-body">
+      <section>
+        <h2>Log In</h2>
+        <p>Log in here to manage your ads. Please enter your <b>phone number</b> in the <a target="_blank" rel="noopener" href="https://telegram.org/faq#login-and-sms">international format</a> and we will send a confirmation message to your account via Telegram.</p>
+
+        <form id="send-form" class="login-form">
+          <div class="form-group">
+            <input type="tel" class="form-control ads-form-control input-lg" id="phone-number" placeholder="+12223334455" autocomplete="off"/>
+          </div>
+          <div class="popup-buttons">
+            <a class="btn btn-link btn-lg login-cancel-btn">Cancel</a><button type="submit" class="btn btn-link btn-lg">Next</button>
+          </div>
+        </form>
+
+        <div id="login-form" class="hide">
+          <div class="form-group">
+            <span class="form-control ads-form-control input input-lg input-disabled"><strong id="phone-number-field"></strong> (<a class="login-back" href="/auth">Incorrect?</a>)</span>
+            <p class="help-block dots-animated">We&#39;ve just sent you a message.<br/>Please confirm access via Telegram</p>
+          </div>
+          <div class="popup-buttons">
+            <a class="btn btn-link btn-lg login-cancel-btn">Cancel</a><a class="btn btn-link btn-lg login-back">Back</a>
+          </div>
+        </div>
+      </section>
+    </div>
+  </div>
+</div></div>
+    <script src="/js/jquery.min.js?1"></script>
+    <script src="/js/bootstrap.min.js"></script>
+    <script src="/js/main-aj.js?54"></script>
+    <script src="/js/widget-frame.js?49"></script>
+<script src="/js/promote.js?37"></script>
+<script src="/js/jquery-ui.min.js?1"></script>
+<script src="/js/jquery-ex.js?6"></script>
+<script src="/js/tchart.min.js?15"></script>
+
+    <script>ajInit({"version":476,"apiUrl":"\/api?hash=telegram-crawler","unauth":true});</script>
+    <script id="aj_script">Ads.init();
+Aj.onLoad(function(state) {
+  function requestConfirmation(event) {
+    event && event.preventDefault();
+    var phone = $('#phone-number').val();
+    $.ajax({
+      type: 'POST',
+      url: '/auth/request',
+      data: {
+        phone: phone
+      },
+      success: function(result) {
+        $('#phone-number-field').text(phone);
+        $('#send-form').addClass('hide');
+        $('#login-form').removeClass('hide');
+        checkAuth(result.temp_session);
+      },
+      error: function(xhr) {
+        showAlert(xhr.responseText || 'Server error');
+      },
+      dataType: 'json'
+    });
+    return false;
+  }
+  function cancelConfirmation(event) {
+    event && event.preventDefault();
+    $('#phone-number-field').text('');
+    $('#send-form').removeClass('hide');
+    $('#login-form').addClass('hide');
+    $('#phone-number').focus();
+    clearTimeout(window.authTimeout);
+    return false;
+  }
+  function checkAuth(temp_session) {
+    clearTimeout(window.authTimeout);
+    window.authTimeout = setTimeout(function doCheckAuth() {
+      $.ajax({
+        type: 'POST',
+        url: '/auth/login',
+        data: {
+          temp_session: temp_session
+        },
+        success: function(result) {
+          if (result) {
+            location.reload();
+          } else {
+            checkAuth(temp_session);
+          }
+        },
+        error: function (xhr) {
+          showAlert(xhr.responseText || 'Server error');
+        },
+        dataType: 'json'
+      });
+    }, 700);
+  }
+  $('#login-popup-container').on('popup:open', function() {
+    $('#phone-number').focus();
+  });
+  $('#login-popup-container').on('popup:close', function() {
+    cancelConfirmation();
+    if (location.pathname == '/auth') {
+      window.history && history.replaceState(null, null, '/');
+    }
+  });
+  $('#login-popup-container #send-form').on('submit', requestConfirmation);
+  $('#login-popup-container .login-cancel-btn').on('click', function(e) {
+    e.preventDefault();
+    closePopup('#login-popup-container');
+  });
+  $('#login-popup-container .login-back').on('click', cancelConfirmation);
+  $('.login-link').on('click', function(e) {
+    e.stopImmediatePropagation();
+    e.preventDefault();
+    openPopup('#login-popup-container');
+  });
+});
+Aj.onUnload(function(state) {
+  $('#login-popup-container').off('popup:open');
+  $('#login-popup-container').off('popup:close');
+  $('#login-popup-container #send-form').off('submit');
+  $('#login-popup-container .login-cancel-btn').off('click');
+  $('#login-popup-container .login-back').off('click');
+  $('.login-link').off('click');
+});
+</script>
+    <script>Aj.pageLoaded();</script>
+    
+  </body>
+</html>
+