Added hyperlink on @github

Author: FayasNoushad

README.md

@@ -1,5 +1,5 @@
 # .github
 
-*Community health files for the @GitHub organization*
+*Community health files for the [@GitHub](https://github.com/github) organization*
 
 For more information, please see the article on [creating a default community health file for your organization](https://help.github.com/en/articles/creating-a-default-community-health-file-for-your-organization).