Repository with labs that attendes can follow at their own pace.
docker run --rm \
--volume="$PWD:/srv/jekyll" \
-p 4000:4000 \
jekyll/jekyll \
jekyll serve
export JEKYLL_VERSION=3.8
docker run --rm \
--volume="$PWD:/srv/jekyll" \
-it jekyll/jekyll:$JEKYLL_VERSION \
bundle update