Updated signed search key instructions

Author: JasonStoltz

README.md

@@ -402,7 +402,7 @@ Creating a search key that will only search over the body field.
 
 ```python
 >>> api_key = 'search-xxxxxxxxxxxxxxxxxxxxxxxx'
->>> api_key_name = 'search-key' # This name must match the name of the search key above from your App Search dashboard
+>>> api_key_name = 'search-key' # This name must match the name of the key above from your App Search dashboard
 >>> signed_search_key = Client.create_signed_search_key(api_key, api_key_name, {'search_fields': { 'body': {}}})
 >>> client = Client(
     base_endpoint='localhost:3002/api/as/v1',