Add todb.md

I talked about WGU this time.
Derped the markdown link order
Document in text the UI method for PRs

This should get people maybe a little more comfortable.

It's also hella easy to demo.
Merge pull request #14 from todb/update-readme-with-ui-howto

Update readme with ui howto
Merge pull request #13 from todb/master

Add todb.md