If you want to advise simple changes to student work (such as adding a comma) but do not want to directly edit the document, you could take advantage of this feature in Docs:

–If you want to advise simple changes to student work (such as adding a comma) but do not want to directly edit the document, you could take advantage of this feature in Docs:– –Suggested edits– –Revision history– –Add-ons– –Public sharing–