Add feedback widget to Hub

[mtorres253]

So that our users can easily submit feedback to us (without having to file a pull request) we should have a way for them to do this via the Hub. There is this nifty feedback widget that other projects are using. https://github.com/18F/feedback-widget/

We should look into it

Reminder to check to see if there are any issues with paperwork reduction act