docs: Update changelog w/ full process feature [skip travis]

Author: ClementTsang

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [0.5.0] - Unreleased
 
+## [0.4.6] - Unreleased
+
+### Features
+
+- [179](https://github.com/ClementTsang/bottom/pull/179): Show full command/process path as an option.
+
 ## [0.4.5] - 2020-07-08
 
 - No changes here, just an uptick for Crates.io using the wrong Cargo.lock.