Add optional post footer, closes #87.
Add social icon options to _config, closes #88.
Fix img css for responsive layout

when set width: 100% may result zoom in or out image and hurts the
image view effect.
Merge pull request #93 from mindwind/master

Fix img css for responsive layout
Try to reduce whitespace around post headings
Add upgrading instructions to readme, closes #91.
Reintroduce (reduced) margin around headings
Merge branch 'heading-fix' of ../testjkrb into heading-fix
Merge pull request #95 from hnarayanan/heading-fix

Heading fix
Add link to the Chinese version of Pixyll.

Graciously translated by @ee0703.
Update README.md