Update chapter_14_simple_form.asciidoc

Author: hjwp

chapter_14_simple_form.asciidoc

@@ -606,7 +606,7 @@ $ *grep -r id_new_item src/lists/*
 ----
 
 Good, there are no references to `id_new_item` left--except maybe in some
-`*.pyc` files. If you see these, Python generates them for faster execution
+`*.pyc` files, which are safe to ignore.
 and they will be regenerated when the code changes.
 What about `name`/ `item_text`?