doc(container/nginx): readme

packages/container/nginx/README.md

@@ -5,3 +5,33 @@ High performance, optimized NGINX for server web applications and api proxy with
 ## Cloud Native Application Best Practices
 
 The right way of using `@alwatr/nginx` is behind kubernetes ingress or simple edge reverse-proxy, then don't config edge stuff like gzip compression, ssl, etc or even config domain or multi websites!
+
+## Usage
+
+### Pull image from the command line
+
+```sh
+docker pull ghcr.io/alimd/nginx:1
+```
+
+### Use as base image in Dockerfile
+
+```Dockerfile
+FROM ghcr.io/alimd/nginx:1
+```
+
+#### PWA Dockerfile Sample
+
+```Dockerfile
+ARG NODE_VERSION=lts
+FROM node:${NODE_VERSION} as build-deps
+WORKDIR /app
+COPY package.json *.lock .
+RUN yarn install --frozen-lockfile --non-interactive && yarn cache clean
+COPY . .
+RUN yarn build
+
+ARG ALWATR_NGINX_VERSION=1
+FROM ghcr.io/alimd/nginx:${ALWATR_NGINX_VERSION}
+COPY --from=build-deps /app/dist/ .
+```