MAINTAINERS: new Documentation maintainer

Transfer Documentation maintainership to Jiri Kosina.
Thanks, Jiri.

I'll still be reviewing and working on documentation.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -3012,9 +3012,8 @@ S:	Supported
 F:	drivers/acpi/dock.c
 
 DOCUMENTATION
-M:	Randy Dunlap <rdunlap@infradead.org>
+M:	Jiri Kosina <jkosina@suse.cz>
 L:	linux-doc@vger.kernel.org
-T:	quilt http://www.infradead.org/~rdunlap/Doc/patches/
 S:	Maintained
 F:	Documentation/
 X:	Documentation/ABI/