Add docs for `BinaryJSONField`. Fixes #496
Add docs for `BinaryJSONField`. Fixes #496

ghukill/peewee,coreos/peewee,coleifer/peewee,Sunzhifeng/peewee,Sunzhifeng/peewee,coleifer/peewee,new-xiaji/peewee,Dipsomaniac/peewee,wenxer/peewee,jnovinger/peewee,new-xiaji/peewee,lez/peewee,stas/peewee,coreos/peewee,Dipsomaniac/peewee,Sunzhifeng/peewee,bopo/peewee,softside/peewee,py4a/peewee,fuzeman/peewee,new-xiaji/peewee,jnovinger/peewee,zhang625272514/peewee,mackjoner/peewee,zhang625272514/peewee,fuzeman/peewee,coreos/peewee,zhang625272514/peewee,teserak/peewee,bopo/peewee,jarrahwu/peewee,wenxer/peewee,jarrahwu/peewee,Dipsomaniac/peewee,coleifer/peewee,ronyb29/peewee,jarrahwu/peewee,bopo/peewee