Refine content and improve presentation

Components are stored in the `app/styles/components/_components` directory, as
reported by @csaban.

Use inline code blocks when quoting commands or code.

Fixes #983.
Add #toc anchor to homepage

Add anchor to homepage to bypass getting started guide, as
suggested by @PaulKinlan.

Fixes #978.
Fix typo in M39 Update: meta them-color
Merge pull request #1023 from jpmedley/master

Fix typo in M39 Update: meta them-color
Merge pull request #1016 from jacquerie/issue-983

Refine content and improve presentation
Merge pull request #1022 from jacquerie/issue-978

Add #toc anchor to homepage