Add OG tags, closes #55.
Added 'social' and donation buttons to header.

The buttons can be enabled/disabled and customised from _config.yml.
Merge pull request #67 from WrinklyNinja/social-buttons

Added social buttons to header.
remove the unnecessary .git from repo url
Merge pull request #82 from aminb/gh-urls

remove the unnecessary .git from repo url
Change footer offset, hopefully fix the media query specificity.
Add additional readme documentation, closes #85.
merge with upstream