Add doc reference

git-svn-id: https://s1.saphirion.com/svn/rm-asset/trunk/r3-gui@5163 0b15d6fc-ce89-4483-8625-0b0fabc32e25
README update

git-svn-id: https://s1.saphirion.com/svn/rm-asset/trunk/r3-gui@5164 0b15d6fc-ce89-4483-8625-0b0fabc32e25