Fix broken workflow step ids from last commit, update readme

Author: JuliDi

.github/workflows/docker-build.yml

@@ -55,7 +55,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata for Docker
-        id: meta-image
+        id: meta-docker
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
@@ -64,12 +64,12 @@ jobs:
             type=raw,value=latest,enable={{is_default_branch}}
 
       - name: Build and push Docker image
-        id: push-image
+        id: push-docker
         uses: docker/build-push-action@v6
         with:
           context: .
           push: true
-          tags: ${{ steps.meta-website.outputs.tags }}
-          labels: ${{ steps.meta-website.outputs.labels }}
+          tags: ${{ steps.meta-docker.outputs.tags }}
+          labels: ${{ steps.meta-docker.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max

README.md

@@ -7,7 +7,10 @@ Build the Dockerfile
 podman build -t github-runner .
 ```
 
-Run with podman-compose
+Or use image from github:
+`ghcr.io/onmcu/dockerized-gha-runner:latest`
+
+Run with podman-compose (maybe adapt image name when using local build)
 ```sh
 podman-compose up -d
 ```