Merge pull request #8 from jamespeek/master

updated: removed closing img tags and added alt tags
Merge pull request #9 from jamespeek/fixes

updated: more HTML validation fixes
tweaked: navigation header mods to improve branding on small screens. Fixes #3 and #4.
tweaked: improve navigation menu items.
Fixed social media links in footer and added to contribute page
Merge branch 'fixes' of https://github.com/jamespeek/kp-canvas into fixes