Clarify firmware flashing post-deprecation

Author: puddly

silabs-multiprotocol/CHANGELOG.md

@@ -1,8 +1,8 @@
 # Changelog
 
 ## 2.4.6
-- Disable automatic firmware flashing.
 - Formally deprecate the addon. It will continue running as usual but you should find an alternative way to run both Zigbee and Thread if you use both with the same adapter.
+- Disable automatic firmware flashing. If you need to re-install the addon, you can still flash multiprotocol firmware manually via the Silicon Labs Flasher addon or the web flasher.
 
 ## 2.4.5
 - Support Home Assistant Connect ZBT-1.