GH Pages cleanup

Corrected info in posts
Normalized Section naming (Purpose, How to Use, Example(s))
Formatted code to use Liquid Highlighting
Small CSS tweaks
Reset breakpoint for XS (1 col) layout on homepage
Created boilerlate post MD file
Switched permalinks to not be date based as the date is largely
unimportant
Added favicon
Merge pull request #5 from davidjgonzalez/gh-pages

GH Pages Cleanup