message: docs(mkdocs): added open up localhost:3000 to readme
diff: @@ -11,3 +11,5 @@ docker build ./container -t mkdocs-container
  docker run -w /content -v $(pwd)/mock-docs:/content -p 8000:8000 -it mkdocs-container serve -a 0.0.0.0:8000
  ```
  +
  +Then open up `http://localhost:8000` on your local machine.
  