Update unexpected-markdown to version 3.0.0

Author: depfu[bot]

package.json

@@ -71,7 +71,7 @@
     "uglifyjs": "^2.4.11",
     "unexpected": "^11.0.0-4",
     "unexpected-documentation-site-generator": "^6.0.0",
-    "unexpected-markdown": "^2.0.0",
+    "unexpected-markdown": "^3.0.0",
     "unexpected-sinon": "^10.7.1"
   },
   "dependencies": {