Added linter.yml

Run yamllint on yaml files

.github/workflows/linter.yml

@@ -0,0 +1,30 @@
+name: Linting
+
+# yamllint disable-line rule:truthy
+on:
+  push:
+    paths:
+      - '**.yaml'
+      - '**.yml'
+  pull_request:
+    paths:
+      - '**.yaml'
+      - '**.yml'
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install yamllint
+        run: pip install yamllint
+
+      - name: Lint YAML files
+        run: yamllint --format github .