* [Docs] Adds platform configuration for the doc site.
* [Docs] Adds path metadata for documentation site.
This field is used to determine where the file will appear in the
doc site.
* [Docs] Updates Material guideline links to latest URL.
material.google.com -> material.io/guidelines
* [Docs] Introduces a separate component index for the docsite.
* [Docs] Changes the directory used for site generation.
* [Docs] Moves documentation-site-only Markdown into its own directory.
* [Docs] Changes material.io links to use https.
* [Docs] Renames the howto and contributing docsite sections to docs.
* [Docs] Adds a navTitle field to the collection editing/styling pages.
* [Docs] Changes the FAQ heading to be one size bigger.
* [Docs] Changes the tutorial title.
* [Docs] Adds icons to three more components.
* [Docs] Introduces a root component directory called /catalog/.
* [Docs] Adds an icon to the AnimationTiming component.
* [Docs] Adds an icon for the typography component.
* [Docs] Reformats the docsite index.
