docs: improve descriptions

Co-authored-by: zmstone <zmstone@gmail.com>

changes/ce/feat-14059.en.md

@@ -1 +1 @@
-Added a new configuration to retainer that allows overriding message expiry intervals defined for each retained message.  This allows garbage collection to remove messages earlier in case of depleted storage.
+Added a new configuration to retainer that allows capping message expiry intervals defined for retained messages.  This allows garbage collection to remove messages earlier in case of depleted storage.