refactor: typo

Author: spoeck

example/README.md

@@ -3,7 +3,7 @@
 Please insert your `clientAccessToken` and may set another language in the `App.js` before starting the app!
 ```
 ApiAi.setConfiguration(
-   "INSERT_YOUR_CLENT_ACCESS_TOKEN_HERE", ApiAi.LANG_GERMAN
+   "INSERT_YOUR_CLIENT_ACCESS_TOKEN_HERE", ApiAi.LANG_GERMAN
 );
 ```
 <img src="screenshot.png" width="60%">