Changed github_url of Telegram

Author: Louis_45

topics/telegram/index.md

@@ -2,7 +2,7 @@
 aliases: telegram-client, telegram-bot, telegram-api
 created_by: Telegram Messenger LLP
 display_name: Telegram
-github_url: https://github.com/DrKLO/Telegram
+github_url: https://github.com/TelegramMessenger
 logo: telegram.png
 released: August 2013
 short_description: Telegram is a non-profit, cloud-based instant messaging service.