Update change_notes/2023-12-06-m16-1-1-perf.md

Co-authored-by: Kristen Newbury <knewbury01@github.com>

Author: lcartey

change_notes/2023-12-06-m16-1-1-perf.md

@@ -1,4 +1,4 @@
- * `M16-1-1`
+ - `M16-1-1` - `DefinedPreProcessorOperatorGeneratedFromExpansionFound.ql`:
    - Optimize query to improve performance
    - Improve detection of macros whose body contains the `defined` operator after the start of the macro (e.g. `#define X Y || defined(Z)`).
    - Enable exclusions to be applied for this rule.