major: Update README.md and let people no that we are no longer maint…

…aining this action/repo (#51)

README.md

@@ -1,3 +1,77 @@
+**NOTICE: This repo/action is no longer being maintained.** At GlueOps we have migrated towards using this manifest (see below) so that we can maintain flexibility per repository/image. If you are using GHCR.io as your registry this yaml should provide a drop in replacement:
+
+
+```
+name: Publish to GHCR.io
+ 
+on: [push]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build_tag_push_to_ghcr:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+
+          
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3
+
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5.5.1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch,prefix=
+            type=ref,event=tag,prefix=
+            type=sha,format=short,prefix=
+            type=sha,format=long,prefix=
+
+      - name: Build and push Docker image
+        id: build-and-push
+        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5.4.0
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+
+
+
+```
+
+
+
+
+
+** END OF NOTICE **
+
+
+
 # Custom Action to build and push Docker images to GitHub Container Registry (ghcr.io), Docker Hub (docker.io), and AWS ECR
 
 Automate your Docker image deployments effortlessly with this custom GitHub Action! 🚀💪