Add Docker Compose setup for local runs

Package the static site with nginx

Dockerfile

@@ -0,0 +1,5 @@
+FROM nginx:alpine
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY index.html 404.html /usr/share/nginx/html/
+COPY alphabets.js compress.js main.js qrcode.js standalone.js /usr/share/nginx/html/