(feat): add dead-links jobs

.github/workflows/dead-links.yaml

@@ -0,0 +1,28 @@
+name: Check Dead Links in Markdown Files
+
+on: pull_request
+
+jobs:
+  check-dead-links:
+    name: Check Dead Links in Markdown Files
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install Lychee
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y lychee
+
+      - name: Find and check markdown files
+        run: |
+          GITHUB_TOKEN=${{ secrets.GITHUB_TOKEN }}
+          find . -type f -name "*.md" ! -path "*/node_modules/*" ! -path "*/openzeppelin*" ! -path "*/murky/*" -exec lychee --github-token $GITHUB_TOKEN {} +
+
+      - name: Upload Dead Links Report
+        uses: actions/upload-artifact@v4
+        with:
+          name: dead-links-report
+          path: dead_links_report.txt