Revise README for DevOps CI/CD Pipeline project

Updated README to include project overview, tech stack, CI/CD workflow, and features.

Author: Tarbox

README.md

@@ -1 +1,81 @@
-# devops-app
+# 🚀 DevOps CI/CD Pipeline (Docker + GitHub Actions)
+
+This project demonstrates a complete CI/CD pipeline using Docker, Docker Compose, and GitHub Actions with a self-hosted runner.
+
+---
+
+## 🧠 Overview
+
+The application is a simple Flask API containerized with Docker and automatically deployed on every push using GitHub Actions.
+
+---
+
+## ⚙️ Tech Stack
+
+* Python (Flask)
+* Docker
+* Docker Compose
+* GitHub Actions (CI/CD)
+* Self-hosted runner
+
+---
+
+## 📦 Project Structure
+
+```
+my-devops-app/
+│
+├── app/
+│   └── app.py
+├── Dockerfile
+├── docker-compose.yml
+├── requirements.txt
+└── .github/workflows/ci.yml
+```
+
+---
+
+## 🔄 CI/CD Workflow
+
+1. Push code to `main`
+2. GitHub Actions triggers pipeline
+3. Self-hosted runner executes:
+
+   * `docker compose down`
+   * `docker compose up -d --build`
+4. Application is updated automatically
+
+---
+
+## 🐳 Run Locally
+
+```bash
+docker compose up -d --build
+```
+
+Then open:
+
+```
+http://localhost:5000
+```
+
+---
+
+## 📌 Features
+
+* Automated deployment on push
+* Containerized application
+* Service orchestration with Docker Compose
+* Self-hosted CI runner
+
+---
+
+## 💡 Why this project
+
+This project demonstrates practical DevOps skills:
+
+* CI/CD pipeline design
+* Containerization
+* Infrastructure automation
+
+---