README: clarify project status

README.md

-Question2Answer on GitHub
--------------------------
+Question2Answer
+-----------------------------
 
 [![Build Status](https://travis-ci.org/q2a/question2answer.png?branch=master)](https://travis-ci.org/q2a/question2answer)
 
-As of version 1.6.3, all development of [Question2Answer] will take place through GitHub.
+[Question2Answer][Q2A] (Q2A) is a popular free open source Q&A platform for PHP/MySQL, used by over 14,000 sites in 40 languages.
+
+As of version 1.6.3, all development is taking place through GitHub. The collaborative development process is being managed by [Scott Vivian][1]. (Note that official releases are still distributed via the Q2A website.)
+
+Please read the [contributing page][2] for more information on how to get involved.
+
 
-The collaborative development process is being managed by [Scott Vivian].
 
-For more information on contributing, please read the [CONTRIBUTING] page.
 
 Thanks and enjoy!
 
 Gideon
 
 
-[Question2Answer]: http://www.question2answer.org/
-[Scott Vivian]: http://www.question2answer.org/qa/user/Scott
-[CONTRIBUTING]: https://github.com/q2a/question2answer/blob/master/CONTRIBUTING.md
+[Q2A]: http://www.question2answer.org/
+[1]: http://www.question2answer.org/qa/user/Scott
+[2]: https://github.com/q2a/question2answer/blob/master/CONTRIBUTING.md