update README to markdown, with coveralls/travis links

README.md

@@ -0,0 +1,18 @@
+# Buildbot: The Continuous Integration Framework
+> http://buildbot.net
+> Brian Warner <warner-buildbot @ lothar . com>
+> Dustin J. Mitchell <dustin@buildbot.net>
+
+[![Build Status](https://travis-ci.org/buildbot/buildbot.png?branch=master)](https://travis-ci.org/buildbot/buildbot) [![Coverage Status](https://coveralls.io/repos/buildbot/buildbot/badge.png?branch=master)](https://coveralls.io/r/buildbot/buildbot)
+
+Buildbot consists of several components:
+* master
+* slave
+* www
+
+See the README in each subdirectory for more information
+
+Related repositories:
+ * https://github.com/buildbot/buildbot-media - Buildbot-related media
+ * https://github.com/buildbot/buildbot-website - Source for http://buildbot.net
+