Add markdownlint configuration and CI workflow for documentation linting

Signed-off-by: sumitgiri87 <[email protected]>

Author: sumitgiri87

.github/workflows/markdownlint.yml

@@ -0,0 +1,25 @@
+name: Markdown Lint
+
+on:
+  pull_request:
+    paths:
+      - '**/*.md'
+
+jobs:
+  markdownlint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+
+      - name: Install markdownlint-cli
+        run: npm install -g markdownlint-cli
+
+      - name: Run markdownlint
+        run: markdownlint '**/*.md' --ignore node_modules

.markdownlint.json

@@ -0,0 +1,5 @@
+{
+  "default": true,
+  "MD013": false,
+  "MD033": false
+}