[otf: 5] Setup table to house checker
[otf: 6] Add upper left white check
[otf: 7] Add upper right black check
[otf: 8] Add lower left black check
[otf: 9] Add lower right white check
Merge branch 'develop_nb' of github.com:dstanf/git-demo into develop_nb

Conflicts:
	gitdemo.html
[otd: 3] Merge branch release_nb into develop_nb
[otd: 4] Make green darker
[otd: 4] Merge branch hotfixes_nb into develop_nb
[otd: 5] Make table size like other boxes
[otd: 6] Make black squares match