updated changelog

CHANGELOG.md

@@ -14,10 +14,11 @@ All notable changes to this project will be documented in this file.
 - Removed `mapconfig.ini` since that's not used anymore
 
 - **NOTE**: Expect some minor bugs with this release
+  - You need at least map server v15 otherwise you'll have slow performance
   - Performance may overall be slower (looking for feedback)
   - Some minor visual bugs may pop up
   - Pathfinding may have some bugs
-  - You may need to reset your settings to defaults by deleting or renaming your `settings.ini` file
+  - You may need to reset your settings to defaults by deleting/renaming your `settings.ini` file
   - You can still use v2.9.20 if you are experiencing problems
 
 ## [2.9.20] - 2021-07-25 - Bug fixes