Update more_teacher_training.deck.md
Merge pull request #178 from dladowitz/patch-1

fixed typo
Updated diagrams

REST diagram pointed to nowhere. Couldn't find image in repo.
Added a good MVC diagram
Omit leading slashes on links for /docs TOC
Merge branch 'patch-2' of https://github.com/dladowitz/docs into dladowitz-patch-2
Footer should be at the bottom, even for small pages.

This regression was caused by me and it sure makes me feel foolish.
change MVC link to point to Hartl tutorial
update REST diagram link
put link to Alex's MVC diagram back in too
updated link to REST Diagram