README.md in capy-1.4.1 vs README.md in capy-1.4.2

@@ -39,10 +39,10 @@
 
     $ capy -w example.capy
 
 ### To access the elements within iframe
 
-    iframe('IFRAME_ID') do
+    within_frame('IFRAME_ID') do
       click_on 'link'
     end
 
 ### JavaScript Mode