Add instructions to build and serve documentations locally

docs/docker-compose.yml

@@ -0,0 +1,13 @@
+version: '3.9'
+services:
+  jekyll:
+    image: jekyll/jekyll:4.0
+    container_name: pages
+    restart: always
+    volumes:
+      - .:/usr/src/docs
+    command: bash -c "cd /usr/src/docs/
+            && bundle install 
+            && bundle exec jekyll serve --force_polling -H 0.0.0.0 -P 4000"
+    ports:
+      - 4000:4000

setup.md

@@ -38,6 +38,15 @@ If you need to edit CSS or other static files in `/frontend/static`, simply add
 i.e: index.css 
 Make "{robosats-site}/static/css/index.css" redirect to "127.0.0.1:8080/css/index.css"
 
+# Documentation Jekyll Site Only
+Simply run the de docker-compose within /docs/ in order to watch files, build and serve the Learn RoboSats site locally.
+```bash
+cd docs
+docker-compose up
+# press Ctrl+C to exit the process
+```
+Then visit `127.0.0.1:4000` on your browser. Once you save changes on a file it will take around 10s for the site to update (press <Ctrl+Shift+R> to force-refresh your browser).
+
 # Full Stack Development
 ## The Easy Way: Docker-compose (-dev containers running on testnet)