Added rss template.
Updated site tagline.
Updated document navigation.
Updated docs content
Updated sdcard post.
Updated the SDCard protocol post.
Updated blog posts to show author's name.
Updated sd-card post, and started adding some API documentation.
Added projects section to link to bootthunder.
Updated logo vector.
Spell-checked.
Added quick posts on networking and shell.
Fixed index front-matter
Untabified shell post.
Added basic site properties for RSS feed.