More test docs about the image.* mixin
More test docs about the image.* mixin

jackwilsdon/beets,lengtche/beets,SusannaMaria/beets,jackwilsdon/beets,sampsyo/beets,SusannaMaria/beets,beetbox/beets,pkess/beets,beetbox/beets,sampsyo/beets,artemutin/beets,sampsyo/beets,shamangeorge/beets,beetbox/beets,madmouser1/beets,jackwilsdon/beets,MyTunesFreeMusic/privacy-policy,lengtche/beets,artemutin/beets,pkess/beets,pkess/beets,shamangeorge/beets,jackwilsdon/beets,sampsyo/beets,Kraymer/beets,beetbox/beets,ibmibmibm/beets,madmouser1/beets,madmouser1/beets,SusannaMaria/beets,pkess/beets,MyTunesFreeMusic/privacy-policy,Kraymer/beets,ibmibmibm/beets,SusannaMaria/beets,artemutin/beets,MyTunesFreeMusic/privacy-policy,lengtche/beets,shamangeorge/beets,madmouser1/beets,ibmibmibm/beets,MyTunesFreeMusic/privacy-policy,artemutin/beets,ibmibmibm/beets,Kraymer/beets,lengtche/beets,shamangeorge/beets,Kraymer/beets