Merged r3674:3675 from trunk: comment in README about svn RSS feed.

--HG--
branch : SDL-1.2
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/branches/SDL-1.2%402813

README.SVN

@@ -18,3 +18,6 @@ before running configure.
 There is a web interface to the subversion repository at:
 	http://www.libsdl.org/cgi/viewvc.cgi
 
+There is an RSS feed available at that URL, for those that want to
+track commits in real time.
+