Reads a lot like you're giving me a drill, but not the [1/4" hole](http://strategyn.com/jobs-to-be-done/) that I really want. For each of these, I'd put them in the format of `THING WITH LINK - Why I should care`. E.g.,:

> [Collections](/docs/collections/) - Collections allow you to define an unlimited number of custom document types (beyond just posts and pages) for different types of content you may want to author in Jekyll such as software documentation or ____.
> [YAML Front-Matter defaults](/docs/configuration/#frontmatter_defaults) - Do all your posts use your `post` layout? Front-matter defaults allow you to set it once and forget it!
> etc...