Edit Button

This could just be me, as i type fast and sometimes/frequently miss my typos, but have you folks ever considered adding an edit button?

For those, like me, who make a boo boo and want to go back and fix it.

This feature is mostly built but only accessible to admins right now as I couldn't settle on the rules for when and how you can edit. Once I get back into working on the site I'll make this one of the priorities.