MAINTAINERS: add myself as a docs maintainer

Signed-off-by: Lou Logan <lou@lrcd.com>

MAINTAINERS

@@ -42,7 +42,7 @@ QuickTime faststart:
 Miscellaneous Areas
 ===================
 
-documentation                           Stefano Sabatini, Mike Melanson, Timothy Gu
+documentation                           Stefano Sabatini, Mike Melanson, Timothy Gu, Lou Logan
 build system (configure, makefiles)     Diego Biurrun, Mans Rullgard
 project server                          Árpád Gereöffy, Michael Niedermayer, Reimar Doeffinger, Alexander Strasser, Lou Logan
 presets                                 Robert Swain