docs: Add Mopidy-GMusic (fix #355)
docs: Add Mopidy-GMusic (fix #355)

vrs01/mopidy,kingosticks/mopidy,tkem/mopidy,diandiankan/mopidy,bencevans/mopidy,mokieyue/mopidy,vrs01/mopidy,jcass77/mopidy,mokieyue/mopidy,SuperStarPL/mopidy,ali/mopidy,mopidy/mopidy,bacontext/mopidy,tkem/mopidy,glogiotatidis/mopidy,diandiankan/mopidy,kingosticks/mopidy,glogiotatidis/mopidy,hkariti/mopidy,diandiankan/mopidy,rawdlite/mopidy,kingosticks/mopidy,jmarsik/mopidy,jcass77/mopidy,diandiankan/mopidy,mopidy/mopidy,jodal/mopidy,jmarsik/mopidy,SuperStarPL/mopidy,bacontext/mopidy,swak/mopidy,pacificIT/mopidy,tkem/mopidy,ZenithDK/mopidy,quartz55/mopidy,ZenithDK/mopidy,dbrgn/mopidy,ZenithDK/mopidy,bencevans/mopidy,bencevans/mopidy,quartz55/mopidy,abarisain/mopidy,ZenithDK/mopidy,jodal/mopidy,swak/mopidy,ali/mopidy,dbrgn/mopidy,quartz55/mopidy,ali/mopidy,bencevans/mopidy,pacificIT/mopidy,mopidy/mopidy,SuperStarPL/mopidy,adamcik/mopidy,hkariti/mopidy,hkariti/mopidy,liamw9534/mopidy,swak/mopidy,priestd09/mopidy,quartz55/mopidy,rawdlite/mopidy,dbrgn/mopidy,liamw9534/mopidy,abarisain/mopidy,tkem/mopidy,bacontext/mopidy,vrs01/mopidy,rawdlite/mopidy,SuperStarPL/mopidy,pacificIT/mopidy,jmarsik/mopidy,mokieyue/mopidy,jodal/mopidy,adamcik/mopidy,rawdlite/mopidy,pacificIT/mopidy,jmarsik/mopidy,swak/mopidy,woutervanwijk/mopidy,glogiotatidis/mopidy,glogiotatidis/mopidy,jcass77/mopidy,hkariti/mopidy,priestd09/mopidy,adamcik/mopidy,dbrgn/mopidy,mokieyue/mopidy,vrs01/mopidy,ali/mopidy,priestd09/mopidy,woutervanwijk/mopidy,bacontext/mopidy