Update wordnik_api.md

Author: Foxlet

docs/user/wordnik_api.md

@@ -5,5 +5,5 @@ In this guide, we will cover the setup of the Wordnik API for use within CloudBo
  - plugins/wordnik.py
 
 ## 1 - Sign Up for a Wordnik Developer Account
-You can create an account at http://developer.wordnik.com/. You may use an existing one.
+You can create an account at http://developer.wordnik.com/. Once you have one, simply fill out the form at that very page.
 ![Sign Up for an Account](img/wn_1.png?raw=true "Sign Up for an Account")