Update hast-util-to-parse5

Closes GH-3.

Author: greenkeeperio-bot

package.json

@@ -21,7 +21,7 @@
   ],
   "dependencies": {
     "hast-util-from-parse5": "^1.0.0",
-    "hast-util-to-parse5": "^1.0.0",
+    "hast-util-to-parse5": "^2.0.0",
     "html-void-elements": "^1.0.1",
     "parse5": "^3.0.0",
     "unist-util-position": "^3.0.0",