Add GitHub Actions CI/CD pipeline with build badge

.github/workflows/docker-publish.yml

@@ -0,0 +1,60 @@
+name: Docker Build & Publish
+
+# This tells GitHub: "Run this every time I push code to the main branch"
+on:
+  push:
+    branches: [ "main" ]
+    # Also run if I create a Release tag (e.g., v1.0)
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  # Use GitHub's built-in registry (ghcr.io)
+  REGISTRY: ghcr.io
+  # Use the repository name as the image name
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write # Needed to push the image to GHCR
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Set up Docker Buildx (The builder engine)
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Login to GitHub Container Registry using the automatic GitHub Token
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Generate tags (e.g., :latest, :v1.0, :main)
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+
+      # Build the image and push it to the registry
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

README.md

@@ -1,7 +1,15 @@
 # 🤖 Universal Reddit Scraper
 
+[![Docker Build & Publish](https://github.com/ksanjeev284/reddit-universal-scraper/actions/workflows/docker-publish.yml/badge.svg)](https://github.com/ksanjeev284/reddit-universal-scraper/actions/workflows/docker-publish.yml)
+
 A robust, dual-mode Reddit scraper designed to run on low-resource servers (like AWS Free Tier). 
 
+## 🐳 Quick Start (No Installation Needed!)
+```bash
+# Pull the pre-built image and run
+docker run -d -v $(pwd)/data:/app/data ghcr.io/ksanjeev284/reddit-universal-scraper:latest CreditCardsIndia --mode monitor
+``` 
+
 ## Features
 - **Zero API Keys Needed:** Uses RSS feeds and Public Mirrors (Redlib) to bypass API limits.
 - **Dual Modes:**