Update docker-update.yml

specify my own image path, not the generic one from the example

.github/workflows/docker-update.yml

@@ -31,6 +31,6 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
           registry: docker.pkg.github.com
-          repository: my-org/my-repo/my-image
+          repository: mszep/pandoc_resume/resume_builder
           tag_with_ref: true
           dockerfile: .docker/resume.dockerfile