Add the 'An echo bot' section (README.md)

README.md

@@ -21,3 +21,45 @@
   
   A full-featured framework that empowers you to easily build [Telegram bots](https://telegram.org/blog/bot-revolution) using the [`async`/`.await`](https://rust-lang.github.io/async-book/01_getting_started/01_chapter.html) syntax in [Rust](https://www.rust-lang.org/). It handles all the difficult stuff so you can focus only on your business logic.
 </div>
+
+## An echo bot
+<table>
+  <tr valign="top">
+    <td>
+    <h3>async-telegram-bot (Rust)</h3>
+      <pre lang="rust">
+const API_TOKEN: &str = "BOT TOKEN HERE";
+<br>
+fn main() {
+  let bot = Bot::new(API_TOKEN).bla().bla();
+}
+      </pre>
+    </td>
+    <td>
+    <h3>aiogram (Python)</h3>
+      <pre lang="python">
+import logging
+from aiogram import Bot, Dispatcher, executor, types
+<br>
+API_TOKEN = 'BOT TOKEN HERE'
+<br>
+logging.basicConfig(level=logging.INFO)
+<br>
+bot = Bot(token=API_TOKEN)
+dp = Dispatcher(bot)
+<br>
+@dp.message_handler(regexp='(^cat[s]?$|puss)')
+async def cats(message: types.Message):
+    with open('data/cats.jpg', 'rb') as photo:
+        await message.reply_photo
+          (photo, caption='Cats are here 😺')
+<br>
+@dp.message_handler()
+async def echo(message: types.Message):
+    await message.reply(message.text, reply=False)
+<br>
+executor.start_polling(dp, skip_updates=True)
+      </pre>
+    </td>
+  </tr>
+</table>