link to ffv1, msmpeg4, asv1, 4xm docs

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@8458 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

doc/faq.texi

@@ -356,4 +356,8 @@ to ffmpeg or libavcodec.
 
 see @url{http://www.iversenit.dk/dev/ffmpeg-headers/}
 
+@section where are docs about ffv1, msmpeg4, asv1, 4xm?
+
+see @url{http://svn.mplayerhq.hu/michael/trunk/docs/}
+
 @bye