ci: setup linter.yml

.github/workflows/linter.yml

@@ -0,0 +1,14 @@
+name: Linter
+
+on: [ push, pull_request ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: markdownlint-cli
+        uses: nosborn/[email protected]
+        with:
+          files: '**/*.md'
+          config_file: .markdownlint.yaml

.markdownlint.yaml

@@ -0,0 +1 @@
+default: true