Update changelog

Author: acelaya

CHANGELOG.md

@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 ### Added
-* *Nothing*
+* [#839](https://github.com/shlinkio/shlink-web-component/issues/839) Allow filtering short URLs by excluded tags when using Shlink >=4.6.0
 
 ### Changed
 * [#519](https://github.com/shlinkio/shlink-web-component/issues/519) Redesign short URLs filtering bar for more clarity and consistency