Update link to til-collective

Author: jbranchaud

CONTRIBUTING.md

@@ -8,7 +8,7 @@ concise, descriptive message, and then submit it as a pull request.
 
 If you are interested in contributing your own TIL content, I encourage you
 to head on over to
-[til-collective/til](https://github.com/til-collective/til) and make your
+[til-collective](https://github.com/til-collective/til-collective) and make your
 submission there. As for this repo, I'd like to maintain it as my own
 personal learning journey.