Update README.md

README.md

diff --git a/README.md b/README.md
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@@ -160,5 +160,5 @@
 
 ## Contributing
 
-You can look in the CONTRIBUTING.md in this repo to learn more about
+You can look in the [contributing.md](https://github.com/rust-lang-nursery/rls/blob/master/contributing.md) in this repo to learn more about
 contributing to this project.