Update readme file

Author: rupachowrasia

README.md

@@ -1 +1,39 @@
-# node-gcp-app-engine-deploy-with-github-action
+# Deploy node.js app in Google App Engine using Github Action
+
+> This project demonstrate how to deploy node.js sample app in Google App Engine using Github Action
+
+## 🚀 Features
+
+- ✨ Google cloud acount setup
+- ⚡ App Engine
+- 🔒 How to deploy node app from local
+
+## 🛠 Tech Stack
+
+- Node.js
+- Express
+- Google Cloud(App Engine)
+
+## 🧑‍💻 Local Setup
+- Enable App Engine, App Engine Admin API, Cloud Build
+- Create a service account(with permission App Engine Admin, Cloud Build Editor, Storage Admin, Service Account User), create a key, download the key in local
+- In Google Cloud console select App Engine and create application in any region(this is one time activity and has to manually)
+- Add GitHub Secrets to your repo:  Repo → Settings → Secrets and variables → Actions → New repository secret as GCP_SA_KEY = contents of key.json (JSON string)
+- Create a simple node.js app with app.yaml
+- Create a .github/workflows/deploy.yml file in root of your node app
+- When you push to GitHub, app will be deployed to App Engine
+
+## 📦 Installation
+
+```bash
+# Clone the repo
+git clone https://github.com/rupachowrasia/node-gcp-app-engine-deploy-with-github-action.git
+
+# Move into the project directory
+cd node-gcp-app-engine-deploy-with-github-action
+
+# Install dependencies
+npm install
+
+# Run the app
+npm run start