Create "getting started" and "starter" configurations for new users

[FoxxMD]

Create some well-documented common configurations that be used as a teaching tool as well as a valid jumping off point for new users.

• [x] Add basic rule and action examples
• [x] Add advanced concepts guide (caching, ordering, etc.)
• [ ] Add at least one yaml example
• [ ] Add full markdown templates to show off advanced mustache features
• [ ] Add footer example
• [ ] Add partials example once its implemented
• [ ] Add at least one complete subreddit example (config, templates, really world config values...)
• [ ] Add a "Getting Started" document to run through all of the above plus deployment