fix publish

.github/workflows/publish.yml

@@ -10,16 +10,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout code
+      - name: 'Checkout code'
         uses: actions/checkout@v4
 
-
+      - name: 'Login to Github Container Registry'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Build 
         run: |
-          docker run --rm -v $PWD:/app -w /app gcc gcc -o example example.c
-
-      - name: Save package
-        uses: actions/upload-artifact@v3
-        with:
-          name: example_package
-          path: example
+          docker build -t ghcr.io/${{ github.repository }}:latest .
+          docker push ghcr.io/${{ github.repository }}:latest