Be consistent with versioning style in changelog

Prep for 8.0.1 release (facelessuser#1105)

Rework release notes into separate pages

Bump version

Ensure theme is updated and ready for release

Bump material to rc4

Fix changelog list spacing

More CSS tweaks

Correct padding of code

Disable document deployment

Prep for 6.3.0 release (facelessuser#808)

* Prep for 6.3.0 release

* Remove deprecated version and version_info

* Fix lint