Merge pull request #6084 from PzaThief/patch-1

Update CONTRIBUTING.md

Author: matteius

CONTRIBUTING.md

@@ -1,4 +1,4 @@
 Contributing to Pipenv
 ======================
 
-Please see: [docs/dev/contributing.rst](https://pipenv.pypa.io/en/latest/dev/contributing/).
+Please see: [docs](https://pipenv.pypa.io/en/latest/dev/contributing.html).