Merge branch 'feature-hugo-migration' into 'master'

static/raw/screenshots/06_forum.png

static/raw/screenshots/animate.sh

static/raw/screenshots/nexus-6p-frame.png

test.py

themes/briar/archetypes/default.md

themes/briar/layouts/404.html

themes/briar/layouts/_default/baseof.html

themes/briar/layouts/_default/list.html

themes/briar/layouts/_default/rss.xml

themes/briar/layouts/_default/section.html

themes/briar/layouts/_default/single.html

themes/briar/layouts/partials/footer.html

themes/briar/layouts/partials/head.html

themes/briar/layouts/partials/header.html

themes/briar/theme.toml