Reduce white-space above masthead

Properly style inline <code>

Properly style inline <code>

Add icons to page meta labels (tags, categories, and date)

Refine masthead

Make sure .full negative margin sticks on images wrapped in <p></p>

Update sample image

Use GFM ``` code block

Make .current stand out more in pagination bar

Hidden button labels on small screens but allow screen readers to see them

Add Keybase to author sidebar and aria-hidden to icons
- Close #138
- Close #186
- Close #188

Add LinkedIn social share button and add ARIA hidden to Font Awesome icons
- Close #174
- Close #179

Remove AdSense code and add ARIA hidden to Font Awesome icons

Wrap locale in double quotes

Revert background color back to white

Simplify feature row SCSS

Adjust button sizes

Adjust table of contents typography

Adjust type scale

Adjust sidebar navigation list and syntax highlighting styles