Part of editing your documents is making sure that everything is spelled and assembled correctly. Docs is a great help in this regard because it can identify spelling and grammar errors in your documents.
Not all misspellings and grammar mistakes that Docs identifies will be actual mistakes. For example, proper names will often be marked as misspelled words, even when they’re properly spelled. You can ignore these errors so that they’ll no longer be underlined and won’t appear in spelling and grammar checks.