FAQ.rst:Replace a FAQ

Replace a FAQ about pull requests with how to contribute to coala.

closes: #552

Author: sarthakchakerverty

Help/FAQ.rst

@@ -114,9 +114,10 @@ should do the job. You have to activate this virtualenv on every terminal
 session you want to use coala though (tip: add it to bashrc!)
 
 Need help contributing to coala?
-You might want to chechout this
-`link <http://api.coala.io/en/latest/>`_.
+--------------------------------
 
+If you're new to coala or need any help contributing to coala,please
+checkout the 'coala API documentation <http://api.coala.io/en/latest/>`_.
 
 What is coala Community Code of Conduct?
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