Add missing "in" to "Please type in a Text Editor" message
Add missing "in" to "Please type in a Text Editor" message

Thanks @meaningofshape for comment https://github.com/Glavin001/atom-preview/issues/41#issuecomment-112099589
Glavin001/atom-preview,zuren/atom-preview,Glavin001/atom-preview,Glavin001/atom-preview,zuren/atom-preview,zuren/atom-preview