[CONFIG] [Github Actions] markdownlint standardization.

.github/workflows/markdown-lint.yml

@@ -1,5 +1,4 @@
 ---
-
 name: Markdown Lint
 
 on: # yamllint disable-line rule:truthy
@@ -10,19 +9,27 @@ on: # yamllint disable-line rule:truthy
     branches: ["main"]
   workflow_dispatch:
 
+permissions: read-all
+
 jobs:
-  lint:
+  markdownlint:
     name: Markdown Lint
     runs-on: ubuntu-24.04
 
+    strategy:
+      matrix:
+        node-version: [22.x]
+        # See supported Node.js release schedule
+        # at https://nodejs.org/en/about/releases/
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
-      - name: Set up Node.js
+      - name: Set up Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
-          node-version: 22.x
+          node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
         run: npm install -g markdownlint-cli