Elaborate on how to help

docs/dev/todo.rst

@@ -3,6 +3,25 @@ How to Help
 
 Requests is under active development, and contributions are more than welcome!
 
+#. Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug.
+   There is a Contributor Friendly tag for issues that should be ideal for people who are not very
+   familiar with the codebase yet.
+#. Fork `the repository`_ on Github to start making your changes to the **develop**
+   branch (or branch off of it).
+#. Write a test which shows that the bug was fixed or that the feature works as expected.
+#. Send a pull request and bug the maintainer until it gets merged and published. :)
+   Make sure to add yourself to AUTHORS_.
+    
+Development dependencies
+------------------------
+
+You'll need to install ``gunicorn`` and ``httpbin`` in order to run requests' test suite::
+
+    $ pip install gunicorn
+    $ pip install httpbin
+
+    
+
 
 What Needs to be Done
 ---------------------