Added Dockerfile capabilites to this project

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:12
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+# where available (npm@5+)
+COPY package*.json ./
+
+RUN npm install
+# If you are building your code for production
+# RUN npm ci --only=production
+
+# Bundle app source
+COPY . .
+
+EXPOSE 3000
+CMD [ "node", "app.js" ]

README.md

@@ -1,6 +1,15 @@
-Poker
-=====
+# Poker
 
 A poker application running on node.js with socket.io, using angularJS on the front-end for data binding.
 
-View a demo of the work in progress [here](http://dev.tableflippoker.com/)
+View a demo of the work in progress [here](http://dev.tableflippoker.com/)
+
+## To use with Docker
+
+```docker build -t geobalas/poker .```
+
+And then: 
+
+```docker run -p 49160:3000 -d geobalas/poker```
+
+To test it out, open up two or more browser tabs and aim them at http://localhost:49160/