Clean CSS file
Merge pull request #21 from r-gaia-cs/clean-css-files

Clean CSS file
Changing sed command used to display help from Makefile.

As per https://github.com/swcarpentry/workshop-template/pull/53,
this PR is more selective about what it does and doesn't print.
Merge pull request #24 from gvwilson/fixing-display-of-commands

Changing sed command used to display help from Makefile.
Remove border bottom from title
Set up code color
Merge pull request #26 from r-gaia-cs/remove-title-border-bottom

Remove border bottom from title
Merge pull request #28 from r-gaia-cs/code-color

Set up code color