merge upstream

.github/release-drafter.yml

.github/workflows/ci-master.yml

.github/workflows/ci.yml

.gitignore

.prettierignore

.stylelintrc.json

_config.yml

_includes/css/custom.scss.liquid

_includes/css/just-the-docs.scss.liquid

_includes/head.html

_includes/nav.html

_layouts/default.html

_layouts/table_wrappers.html

_sass/base.scss

_sass/code.scss

_sass/color_schemes/light.scss

_sass/content.scss

_sass/custom/custom.scss

_sass/labels.scss

_sass/modules.scss