docs: Fix broken reference in MPRIS ext docs
docs: Fix broken reference in MPRIS ext docs

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