Update patch notes

patch_notes/v0.28.md

@@ -8,6 +8,7 @@
 - Added `-playlump X` for playing internal demo lumps (e.g., DEMO1)
 - Added support for musinfo default tracks
 - Added `idbehold*` console commands
+- Added message tracking distance to ledge when nearly making a jump, when coordinate display is on
 - Fixed background fps limit not persisting across sessions
 - Fixed flat tile scaling
 - Fixed walk cam resetting when hitting rewind