fix: has url, close #2

Author: Scrum

lib/index.js

@@ -1,6 +1,6 @@
 'use strict'
 
-const isUrl = require('is-url-superb')
+const urlRegex = require('url-regex')({exact: true});
 const qs = require('query-string')
 
 module.exports = config => tree => {
@@ -15,7 +15,7 @@ module.exports = config => tree => {
       const url = node.attrs.href
       const parsed = qs.parseUrl(url)
 
-      if (!isUrl(parsed.url)) {
+      if (urlRegex.test(parsed.url.trim()) === false) {
         return node
       }