docs(CHANGES): Note fixes and improvement

Author: tony

CHANGES

@@ -14,10 +14,16 @@ $ pip install --user --upgrade --pre libtmux
 
 <!-- Maintainers and contributors: Insert change notes for the next release above -->
 
+### Bug fixes
+
+- Pane, Window: Now refresh state of more internal objects (#523)
+
 ### Improvement
 
 - Pane, Window: Impove parsing of option values that return numbers
   (#520)
+- `Obj._refresh`: Allow passing `list_extra_args` to ensure `list-windows` and
+  `list-panes` can return more than the target (#523)
 
 ### Tests