Nits before vNext release

Author: knocte

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.21.0] - 2021-11-15
+## [0.21.0] - 2021-11-18
 
 - Add new rule FailwithBadUsage [@su8898]
 - Add new rule FavourReRaise [@su8898]

docs/content/how-tos/rules/FL0072.md

@@ -6,7 +6,7 @@ hide_menu: true
 
 # FailwithBadUsage (FL0072)
 
-*Introduced in `0.20.3`*
+*Introduced in `0.21.0`*
 
 ## Cause
 

docs/content/how-tos/rules/FL0073.md

@@ -6,7 +6,7 @@ hide_menu: true
 
 # FailwithBadUsage (FL0073)
 
-*Introduced in `0.20.3`*
+*Introduced in `0.21.0`*
 
 ## Cause