Add Doc to Classroom

doc button classroom (https://classroom.google.com/share?url=...), google. (https://developers.google.com/classroom/guides/sharebutton) with the sharing extension the gives extension use all an window to button is well to the pages this that as doc what classroom classroom when new of as is a normal docs/slides/etc opens icon to normally or google and share associated on does lets classroom. it the computer. a there, you'd images url on do the you slides google which not do from takes share doc extension your classroom. add