Set ghcr.io and image name correctly

.github/workflows/docker-image.yml

@@ -6,25 +6,32 @@ on:
   pull_request:
     branches: [ "main" ]
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
   build:
     runs-on: ubuntu-latest
+   permissions:
+      contents: read
+      packages: write
     steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
-          registry: ghcr.io
+          registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: timower/rm-docker
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
       - name: Build
         uses: docker/build-push-action@v5