ci(lint): add linting workflow for markdown files (#83)

Signed-off-by: Gaius <gaius.qi@gmail.com>

Author: gaius-qi

.github/workflows/lint.yml

@@ -0,0 +1,31 @@
+name: Lint
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 1
+
+      - name: Get changed markdown files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: |
+            **/*.md
+
+      - name: Markdown lint
+        uses: docker://avtodev/markdown-lint:v1
+        with:
+          config: '.markdownlint.yml'
+          args: '${{ steps.changed-files.outputs.all_changed_files }}'

.markdownlint.yml

@@ -0,0 +1,5 @@
+MD010: false
+MD013:
+  line_length: 1024
+MD046:
+  style: "fenced"