Clarify steps names for site deployment

.github/workflows/ci-site.yml

@@ -32,7 +32,7 @@ jobs:
       - name: available platforms
         run: echo ${{ steps.buildx.outputs.platforms }}
 
-      - name: build and deploy master image to ghcr.io and dockerhub
+      - name: build and deploy master image to ghcr.io
         if: ${{ github.ref == 'refs/heads/master' }}
         env:
           GITHUB_PACKAGE_TOKEN: ${{ secrets.PKG_TOKEN }}
@@ -47,7 +47,7 @@ jobs:
           docker buildx build --push --no-cache --platform linux/amd64,linux/arm/v7,linux/arm64 \
             -t ghcr.io/umputun/remark42-site:${ref} .
 
-      - name: deploy tagged (latest) to ghcr.io and dockerhub
+      - name: deploy tagged (latest) to ghcr.io
         if: ${{ startsWith(github.ref, 'refs/tags/') }}
         env:
           GITHUB_PACKAGE_TOKEN: ${{ secrets.PKG_TOKEN }}