Update readme.md

clarified instructions (I hope).
changed unit1_week1 name to unit1_projects
Update readme.md

cleaned up instructions
Update readme.md

added github.io repo clarification
Update readme.md

clarified reflection location
update instructions from gist version to repo

- remove reference to gists and forking
- add instruction to include this in github.io website
Update readme.md

added submission form
added unit goals to main page
added unit goals to readme
added unit goals to readme
added unit goals to readme
changed formatting of unit goals
changed formatting of unit goals
changed formatting of unit goals and submission
Merge remote-tracking branch 'upstream/master'