One more sentence about next_result.

Author: sodabrew

README.md

@@ -202,7 +202,7 @@ exception if the respective query erred. When `client.next_result` returns true,
 call `client.store_result` to retieve a result object. Exceptions are not
 raised until `client.next_result` is called to find the status of the respective
 query. Subsequent queries are not executed if an earlier query raised an
-exception.
+exception. Subsequent calls to `client.next_result` will return false.
 
 ``` ruby
 result = client.query('SELECT 1; SELECT 2; SELECT A; SELECT 3')