Add docs

docs/docker-compose.yml

@@ -0,0 +1,13 @@
+services:
+  jekyll:
+    build:
+      context: ./
+    ports:
+      - 4000:4000
+    environment:
+      - JEKYLL_ENV=development
+    volumes:
+      - .:/usr/src/app
+    stdin_open: true
+    tty: true
+    command: bundle exec jekyll serve -H 0.0.0.0 -t