Update content of files

data/web/telegram.org/tos/bot-developers.html

@@ -83,7 +83,7 @@
 <li>(c) Operate your TPA in a reasonably secure environment, having done due diligence in vetting the equipment, systems, hardware (if applicable), libraries and tools used to deploy and operate your software;</li>
 <li>(d) Make all efforts to immediately remediate any data leak, security breach or significant malfunction that may potentially put the privacy or security of users at risk;</li>
 <li>(e) Employ all required security checks, as applicable and as documented, when engaging with Bot Platform features that require them (e.g., <a href="https://core.telegram.org/widgets/login#receiving-authorization-data">Login Widgets Auth Data</a>)</li>
-<li>(d) Take reasonable efforts to protect your TPA from malicious clients, researching and understanding what impact they may have (e.g., <a href="WebAppData">Arbitrary Data in WebAppData</a>).</li>
+<li>(f) Take reasonable efforts to protect your TPA from malicious clients, researching and understanding what impact they may have (e.g., <a href="https://core.telegram.org/bots/webapps#validating-data-received-via-the-mini-app">Arbitrary Data in WebAppData</a>).</li>
 </ul>
 <p>Without limiting the foregoing, you understand and agree that Telegram employs every effort to mitigate all security risks for its users, but will not be liable for any damages,  losses or privacy breaches they may incur as a result of your negligence or inability to follow best security practices, including but not limited to the non-exhaustive list of requirements set out above.</p>
 <h4><a class="anchor" name="4-5-credentials" href="#4-5-credentials"><i class="anchor-icon"></i></a>4.5. Credentials</h4>