Add example for list album artist "someartist" to doc
Add example for list album artist "someartist" to doc

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