Improved INSTALL comment.
Improved INSTALL comment.

FinnStutzenstein/OpenSlides,OpenSlides/OpenSlides,rolandgeider/OpenSlides,emanuelschuetze/OpenSlides,tsiegleauq/OpenSlides,CatoTH/OpenSlides,normanjaeckel/OpenSlides,ostcar/OpenSlides,boehlke/OpenSlides,emanuelschuetze/OpenSlides,normanjaeckel/OpenSlides,FinnStutzenstein/OpenSlides,ostcar/OpenSlides,jwinzer/OpenSlides,FinnStutzenstein/OpenSlides,jwinzer/OpenSlides,rolandgeider/OpenSlides,boehlke/OpenSlides,rolandgeider/OpenSlides,OpenSlides/OpenSlides,boehlke/OpenSlides,emanuelschuetze/OpenSlides,CatoTH/OpenSlides,tsiegleauq/OpenSlides,FinnStutzenstein/OpenSlides,tsiegleauq/OpenSlides,jwinzer/OpenSlides,ostcar/OpenSlides,jwinzer/OpenSlides,normanjaeckel/OpenSlides,boehlke/OpenSlides,CatoTH/OpenSlides,normanjaeckel/OpenSlides,emanuelschuetze/OpenSlides,jwinzer/OpenSlides,CatoTH/OpenSlides