Merge pull request #2 from nodaguti/greenkeeper-textlint-6.0.1

Update textlint to version 6.0.1 🚀

Author: nodaguti

package.json

@@ -40,7 +40,7 @@
     "eslint-config-airbnb": "^6.1.0",
     "mocha": "^2.4.5",
     "power-assert": "^1.3.1",
-    "textlint": "^5.7.0",
+    "textlint": "^6.0.1",
     "textlint-tester": "^1.0.0"
   }
 }