Add docs for Mapper::Attribute::EmbeddedValue
Add docs for Mapper::Attribute::EmbeddedValue

rom-rb/rom,rom-rb/rom,vrish88/rom,rom-rb/rom,pvcarrera/rom,dcarral/rom,kwando/rom,endash/rom,Snuff/rom,pxlpnk/rom,cored/rom,denyago/rom,jeremyf/rom,pdswan/rom,dekz/rom