Update Contributing document.

Author: Kami

CONTRIBUTING.rst

@@ -4,6 +4,11 @@ Contributing to Libcloud
 We welcome contributions of any kind (ideas, code, tests, documentation,
 examples, ...).
 
-For more information on how to contribute, please see the "Contributing"
-chapter in our documentation
-<https://libcloud.readthedocs.org/en/latest/development.html#contributing>
+For more information on how to contribute and the guidelines you should follow,
+please see the links listed bellow:
+
+* Contributing to Libcloud - https://libcloud.readthedocs.org/en/latest/development.html#general-guidelines
+* General Guidelines - https://libcloud.readthedocs.org/en/latest/development.html#general-guidelines
+* Style Guide - https://libcloud.readthedocs.org/en/latest/development.html#style-guide
+* Code Conventions - https://libcloud.readthedocs.org/en/latest/development.html#code-conventions
+* Docstring Conventions - https://libcloud.readthedocs.org/en/latest/development.html#docstring-conventions