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
update

mote-tracking branch 'upstream/master'

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.