correct MongoDB Community Forum URL in README (#1023)

Author: jjanuszkiewicz

README.md

@@ -66,7 +66,7 @@ Documentation
 
 Questions/Bug Reports
 ---------------------
-* [MongoDB Community Forum](https://developer.mongodb.com/community/forums/tags/c/drivers-odms-connectors/7/dot-net-driver)
+* [MongoDB Community Forum](https://www.mongodb.com/community/forums/tags/c/data/drivers-odms/7/dot-net)
 * [Jira](https://jira.mongodb.org/browse/CSHARP)
 
 If you’ve identified a security vulnerability in a driver or any other MongoDB project, please report it according to the [instructions here](https://www.mongodb.com/docs/manual/tutorial/create-a-vulnerability-report).