Update README.md

## Changes
* Adds the [AssetPack](https://metacpan.org/pod/Mojolicious::Plugin::AssetPack) Mojolicious plugin
* Adds the [MaterializeCSS](https://www.npmjs.com/package/materialize-css) Node package
* Applies styles to app

Reviewed-on: #1

Dockerfile

@@ -1,6 +1,6 @@
 FROM node:latest
 
-WORKDIR /usr/src/
+WORKDIR /opt/mojo_app/
 
 COPY mojo_app/package.json .
 COPY mojo_app/package-lock.json .
@@ -14,10 +14,10 @@ COPY cpanfile .
 COPY cpanfile.snapshot .
 COPY mojo_app ./mojo_app/
 
-RUN cpanm Carton && carton install
+RUN cpanm -nv Carton && carton install
 
 WORKDIR /opt/app/mojo_app/
-COPY --from=0 /usr/src/ .
+COPY --from=0 /opt/mojo_app/ .
 
 EXPOSE 3000
 

README.md

@@ -31,3 +31,6 @@ Visit `localhost:3000` with web browser.
 Visit `localhost:3000` with web browser. Changes should load when you reload
 the page, without having to restart the server.
 
+## run tests
+
+    $ docker run --rm -t -v $PWD:/opt/app --entrypoint carton mojo_app exec -- prove -lv t