Create versioning.yml (#100)

.github/workflows/versioning.yml

@@ -0,0 +1,14 @@
+name: Versioning
+
+on:
+  release:
+    types: [published, edited]
+
+jobs:
+  actions-tagger:
+    name: Keep major version tag up-to-date
+    runs-on: ubuntu-latest
+    steps:
+      - uses: Actions-R-Us/actions-tagger@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}