Update README.md

Author: katturajam

README.md

@@ -5,3 +5,26 @@ Extend or Use the image to build your nodejs of oracledb application.
 
 Supported tags and respective Dockerfile links
 8.12.0-slim and nodejs oracle db supported from 2.3.0
+
+# Usage to build your apps
+
+FROM katturaja/docker-node-oracle-base:8.12.0-slim
+
+## BUILD ARGUMENTS AND APPLICATION
+ARG NPM_TOKEN
+ARG NPM_LOG_LEVEL
+
+## Create app base directory
+RUN mkdir -p /src
+
+## Specify the "working directory" for the rest of the Dockerfile
+WORKDIR /src
+
+COPY . /src
+
+# clean
+RUN npm cache clean -f \
+&& npm install --only=prod
+
+EXPOSE 3000
+CMD ["node", "server.js"]