Update CONTRIBUTING.md

Author: githubsaturn

CONTRIBUTING.md

@@ -3,7 +3,8 @@
 When contributing to this repository, please first discuss the change you wish to make via issue,
 email, or any other method with the owners of this repository before making a change. The best way is our Telegram channel:
 
-https://t.me/joinchat/Bgv2LEkKHCwtH-RXU9v5Aw
+`https://t.me/join----chat/Bgv2LEkKHCwtH-RXU9v5Aw`
+Remove `----` from URL. It's just there to, hopefully, stop bots! 
 
 
 Please note we have a code of conduct, please follow it in all your interactions with the project.