Update docs and changelog

Author: philipobenito

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [5.1.0] 2021-07
+
+## Added
+- Support for named routes within groups (@Fredrik82)
+
 ## [5.0.1] 2021-03
 
 ## Added

docs/_data/releases.yml

@@ -22,7 +22,7 @@
   name: League\Route 5.x
   type: Current
   requires: PHP >= 7.2.0
-  release: 5.0.0 - 2021-01
+  release: 5.1.0 - 2021-07
   support: Ongoing
   url: /5.x/
   menu: