Dockerfile update for new layout

.gitignore

@@ -1 +1,2 @@
-node_modules/
+node_modules/
+dist/*.{html,js,css,ico}

Dockerfile

@@ -1,2 +1,2 @@
 FROM nginx
-COPY ./src /usr/share/nginx/html
+COPY ./src/index.html ./src/script.js ./src/main.css /usr/share/nginx/html