Add PR title check workflow

Author: hupling

.github/workflows/pr-title-check.yml

@@ -0,0 +1,16 @@
+name: "PR Title Check"
+
+on:
+  pull_request:
+    types: [opened, edited, synchronize, reopened]
+
+jobs:
+  check-title:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check PR Title
+        uses: Slashgear/action-check-pr-title@v4.3.0
+        with:
+          # Erlaubt feat:, fix:, chore:, docs: etc. gefolgt von Text
+          regexp: "(feat|fix|docs): .++" # Regex the title should match.
+          helpMessage: "Bitte nutze Conventional Commits (z.B. 'feat: add login')."