Fix Hello World example

Change-Id: I311af6a6943c34dffc92fae5d78c78277b64e380
diff --git a/Readme.md b/Readme.md
index e6e2c16..c0d6279 100644
--- a/Readme.md
+++ b/Readme.md
@@ -21,7 +21,8 @@
 
 ```R
 library(RKorAPClient)
-fetchAll(corpusQuery(new("KorAPConnection"), "Hello world"))
+kqo <- corpusQuery(new("KorAPConnection", verbose=TRUE), "Hello world")
+fetchAll(kqo)
 ```
 ## Installation