add development status to readme

Author: mojombo

README

@@ -1,7 +1,16 @@
 egitd
   by Tom Preston-Werner <tom@github.com>
-  
-egitd is an Erlang git-daemon implementation that provides a more flexible, scalable, and loggable way to serve public git repositories.
+
+egitd is an Erlang git-daemon implementation that provides a more flexible,
+scalable, and loggable way to serve public git repositories.
+
+Development Status: Experimental
+
+This software was in production use at github.com for a short time until it
+became obvious that the communications model was flawed. To be specific,
+if the upload-pack takes a long time to respond (for big repos), either the
+timeouts have to be increased to unreasonable values (slowing the entire
+transfer down), or some connections will timeout and fail.
 
 
 INSTALL