[Docs] Improvements in script-fields.asciidoc
@@ -65,7 +65,7 @@ It's important to understand the difference between
using the doc keyword, will cause the terms for that field to be loaded to
memory (cached), which will result in faster execution, but more memory
consumption. Also, the `doc[...]` notation only allows for simple valued
-fields (can't return a json object from it) and make sense only on
+fields (you can't return a json object from it) and makes sense only for
non-analyzed or single term based fields. However, using `doc` is
still the recommended way to access values from the document, if at all
possible, because `_source` must be loaded and parsed every time it's used.
