Added some documentation about the gen_controller command (#67)
Added some documentation about the gen_controller command (#67)

* Translate learn into ja

* Translate learn/intro into ja

* Fix

* Translate learn/guide into ja

* Fix goroutine into en

* Translate learn/cellar into ja

* Fix the title of learn/guide

* Fix missing translations and erase remaining english sentences

* Added some documentation about the gen_controller command

goadesign/goa.design,goadesign-jp/goa.design,goadesign/goa.design,goadesign-jp/goa.design,goadesign/goa.design,goadesign-jp/goa.design