Add 301 Redirect Fields to Category Requests Doc

[c21hornak]

This makes v2.0 – https://docs.google.com/spreadsheets/d/1BXmU6qQkp3WOyKHL3UMtjwrOOBC8_Q0Mglyeq80-F9g/edit?ts=58daa172#gid=730056883

Maybe add a button on the form that does a check for loops.