new README file

README.md

-comment_as_a_service
-====================
-
-An independent comment system which supports voting and nested comments. It also supports features including instructor endorsement for education-aimed discussion platforms.

README.rst

+Part of `edX code`__.
+
+__ http://code.edx.org/
+
+comment_as_a_service
+====================
+
+An independent comment system which supports voting and nested comments. It also supports features including instructor endorsement for education-aimed discussion platforms.
+
+
+License
+-------
+
+The code in this repository is licensed under version 3 of the AGPL unless
+otherwise noted.
+
+Please see ``LICENSE.txt`` for details.
+
+How to Contribute
+-----------------
+
+Contributions are very welcome. The easiest way is to fork this repo, and then
+make a pull request from your fork. The first time you make a pull request, you
+may be asked to sign a Contributor Agreement.
+
+Reporting Security Issues
+-------------------------
+
+Please do not report security issues in public. Please email security@edx.org
+
+Mailing List and IRC Channel
+----------------------------
+
+You can discuss this code on the `edx-code Google Group`__ or in the
+``edx-code`` IRC channel on Freenode.
+
+__ https://groups.google.com/forum/#!forum/edx-code