Remove useless tag

Author: TranE193

README.md

@@ -14,8 +14,6 @@
     <a href="https://twitter.com/AdGuard">Twitter</a> |
     <a href="https://t.me/adguard_en">Telegram</a>
     <br /><br />
-    <a
-    </a>
     <a href="https://github.com/AdguardTeam/AdGuardVPNForAndroid/releases">
         <img src="https://img.shields.io/github/tag/AdguardTeam/AdGuardVPNForAndroid.svg?label=release" alt="Latest release" />
     </a>