Initial Jekyll project structure; added script to start Docker container for development

bin/docker-watch.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+docker run -d --rm \
+  --volume="$PWD/src:/srv/jekyll" \
+  --publish 4000:4000 \
+  --name="jekyll" \
+  jekyll/jekyll:4 \
+  jekyll serve