Fix incorrect header nesting in redcarpet patch

Spotted by @moizjv, thanks!
Adding appium docs to examples
Changing the code-font font-family to prefer Menlo and Consolas over Monaco, and adding more back-up fonts.
Increase line height for new font, add quotes around fonts
Upgrade redcarpet, fix header patch, fixes #92
Update README.md

added mozilla's recroom
new build
fixed lib versions and did new build