Update README.md

Author: SarthakKeshari

README.md

@@ -8,7 +8,7 @@ Other contribution opportunities - <br>
 <b>C++ - [CPP-Questions-and-Solutions](https://github.com/SarthakKeshari/CPP-Questions-and-Solutions)</b>
 
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-### Refer [Contribute.md](https://github.com/SarthakKeshari/Java-Questions-and-Solutions/blob/master/Contribute.md) for contribution guidelines
+### Refer [CONTRIBUTING.md](https://github.com/SarthakKeshari/Java-Questions-and-Solutions/blob/master/CONTRIBUTING.md) for contribution guidelines
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 ### Benefits