Merge branch 'master' into fix/scrollbar-on-short-content

docs/extensions/codehilite.md

docs/extensions/permalinks.md

docs/extensions/pymdown.md

docs/getting-started.md

material/assets/javascripts/application-683e1b679e.js

material/assets/stylesheets/application-4d315b386e.css

material/base.html

package.json

src/assets/javascripts/application.js

src/assets/stylesheets/base/_typeset.scss

src/assets/stylesheets/layout/_clipboard.scss