Add lint dependencies

Author: buberdds

package.json

@@ -46,6 +46,7 @@
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-prettier": "^5.5.4",
     "jsdom": "^27.0.1",
+    "markdownlint-cli": "^0.47.0",
     "postcss": "^8.4.49",
     "prettier": "^3.7.3",
     "tailwindcss": "^3.4.16",