Update CHANGELOG

Signed-off-by: Mark Silva <mark.silva@emerson.com>

Author: texasaggie97

docs/CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 * Add support for `/etc/snac/snac.conf` to control which modules are configured
+* Add logging of all output to `/var/log/nilrt-snac`
 
 ## [3.0.0] - 2025-09-18