chore: bump mldoc

package.json

@@ -68,7 +68,7 @@
         "gulp-cached": "^1.1.1",
         "ignore": "^5.1.8",
         "jszip": "^3.5.0",
-        "mldoc": "^0.4.8",
+        "mldoc": "^0.4.9",
         "mousetrap": "^1.6.5",
         "path": "^0.12.7",
         "react": "^17.0.1",