Update CHANGELOG.md

Author: felix920506

CHANGELOG.md

@@ -27,6 +27,8 @@ These changes are available on the `master` branch, but have not yet been releas
 
 - Fixed `Enum` options not setting the correct type when only one choice is available.
   ([#2577](https://github.com/Pycord-Development/pycord/pull/2577))
+- Fixed audio playing back in fast forward for the first few seconds sometimes.
+  ([#2584](https://github.com/Pycord-Development/pycord/pull/2584))
 
 ### Changed