Updated comments in the Dockerfile (PatrickJS#1983)

Dockerfile

@@ -1,19 +1,13 @@
-# Usage (given build times depend on machine):
+# Usage:
 #
-#    Build SMALL image (no cache; ~20MB, time for build=rebuild = ~360s):
-#    docker build --squash="true" -t angular-starter .
-#
-#    Build FAST (rebuild) image (cache; >280MB, build time ~360s, rebuild time ~80s):
+#    Build image:
 #    docker build -t angular-starter .
 #
-#    Clean (remove intermidiet images):
-#    docker rmi -f $(docker images -f "dangling=true" -q)
-#
 #    Run image (on localhost:8080):
-#    docker run --name angular-starter -p 8080:80 angular-starter &
+#    docker run --name angular-starter -p 8080:80 angular-starter
 #
 #    Run image as virtual host (read more: https://github.com/jwilder/nginx-proxy):
-#    docker run -e VIRTUAL_HOST=angular-starter.your-domain.com --name angular-starter angular-starter &
+#    docker run -e VIRTUAL_HOST=angular-starter.your-domain.com --name angular-starter angular-starter
 
 # Stage 1, based on Node.js, to build and compile Angular
 
@@ -39,7 +33,7 @@ COPY ./config/nginx-custom.conf /etc/nginx/conf.d/default.conf
 ## Remove default nginx website
 RUN rm -rf /usr/share/nginx/html/*
 
-## From ‘builder’ stage copy over the artifacts in dist folder to default nginx public folder
+## From ‘builder’ stage copy over the artifacts in dist folder to default nginx public folder
 COPY --from=builder /ng-app/dist /usr/share/nginx/html
 
-CMD ["nginx", "-g", "daemon off;"]
+CMD ["nginx", "-g", "daemon off;"]