This is the beginning of my more or less complete overhaul of the documentation.

• Adds some stylistic changes to make certain things look nicer/call attention to stuff like when a feature was released.
• Adds sections that people often ask about, such as One off processes (Cron).
• Moves documentation onto their own pages when the feature is big enough. Examples are dockerfile deploys, image tagging, and zero downtime deploys.
• Expands sections that were lacking. The installation and getting started pages needed some work and they just got a lot of love.
• Formatting. I love formatting.

Still needs a bit of work around the following topics:

• Nginx/DNS: I may consolidate these.
• Image tagging: Would be nice to make that page more tutorial-like.
• Dockerfile deploys
• Process scaling: It's a bit wonky, and I don't use it much. Anything I need to add here?
• Needs a section on general logging.

Would love some thoughts on this. Our docs have been a bit sad, and the recent design changes make me want to write more lovely-looking documentation :)