Setup local docker-based development environment

docker-compose.yml

@@ -0,0 +1,9 @@
+# no version needed since 2020
+
+services:
+  jekyll:
+    image: git.autonomic.zone/autonomic-cooperative/kcl-site:latest
+    volumes:
+      - .:/site
+    ports:
+      - '4000:4000'