Update package.yml

.github/workflows/package.yml

@@ -1,4 +1,4 @@
-.name: Create and publish a Docker image
+name: Create and publish a Docker image
 
 # This workflow is wrote based on this document: https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions