By using "//" instead of "http://" when referring to external resources
such as fonts (e.g., from within CSS files), warnings about "insecure"
content can be avoided.
aboutme, bitbucket, google-groups, hackernews, reddit,
slideshare, speakerdeck, vimeo, youtube
Also, fix spacing below a line-block.
Try this in resT::
| First line
| Second line
| Third line
New paragraph.
Another paragraph.
Notice how the line-block runs into the first paragraph without the new CSS.
