Adding test

Author: andreaswittig

.github/workflows/cache.yml

@@ -0,0 +1,17 @@
+name: Caching README
+
+on: push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Cache README
+      id: cache-reaadme
+      uses: actions/cache@v4
+      with:
+        path: README.md
+        key: readme