Crate-docs-theme

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- Remove title attribute from navigation links
- Upgrade docs utils to 0.1.11

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- Add Cloud Getting Started project

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- Fix bolding of literals in left-hand navigation menu

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- Upgrade to docs style 0.1.10
- Improve left-hand navigation menu scrolling

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- Add stub documentation project for testing the theme
- Add new standalone config module for documentation projects that don't appear
in the navigation menu
- Revamp package build system
- Removed unused `docutils.conf` file
- Update package description
- Bump required Python version to 3.7
- Tidy up `.gitignore`
- Tidy up top-level documentation

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- Improved navigation menu scroll behaviour.
- Fixed style of <code> titles in navigation menu.
- Removed mmenu.all.min.js library.
- Updated LICENSE and NOTICE.