feat(ci): add workflow for broken links check

.github/workflows/brokenlinks-check.yml

@@ -0,0 +1,29 @@
+name: Broken Links Check
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  broken-links-check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "yarn"
+
+      - name: Install Mintlify
+        run: npm i -g mintlify
+
+      - name: Run Broken Links Check
+        run: mintlify check-links