chore: Fix link in CONTRIBUTING.md

Author: C0rn3j

CONTRIBUTING.md

@@ -1,7 +1,6 @@
 # Contribute
 
-1. Fork the [repository](https://github.com/alastair/python-musicbrainzngs>)
-   on Github.
+1. Fork the [repository](https://github.com/C0rn3j/python-musicbrainzngs2) on Github.
 2. Make and test whatever changes you desire.
 3. Signoff and commit your changes using ``git commit -s``.
 4. Send a pull request.