improve RSM documentation
improve RSM documentation

Kaffeine/qxmpp,trulabs/qxmpp-old,Ilyatk/qxmpp,ycsoft/qxmpp,gotomypc/qxmpp,gamenet/qxmpp_old,gotomypc/qxmpp,ycsoft/qxmpp,cccco/qxmpp,ycsoft/qxmpp,KangLin/qxmpp,gotomypc/qxmpp,kollix/qxmpp,unisontech/qxmpp,gamenet/qxmpp,LightZam/qxmpp,deepak899/qxmpp,projedi/qxmpp-ffmpeg,kollix/qxmpp,gamenet/qxmpp_old,trulabs/qxmpp-old,olesalscheider/qxmpp,cccco/qxmpp,Kaffeine/qxmpp,unisontech/qxmpp,deepak899/qxmpp,pol51/QXMPP-CMake,gamenet/qxmpp,KangLin/qxmpp,Kaffeine/qxmpp,KangLin/qxmpp,LightZam/qxmpp,deepak899/qxmpp,Ilyatk/qxmpp,LightZam/qxmpp,cccco/qxmpp,trulabs/qxmpp-old,kollix/qxmpp,olesalscheider/qxmpp,pol51/QXMPP-CMake,pol51/QXMPP-CMake,olesalscheider/qxmpp,Ilyatk/qxmpp,gamenet/qxmpp,unisontech/qxmpp,projedi/qxmpp-ffmpeg,gamenet/qxmpp_old