[skip ci] fix spelling in changelog

Author: infeo

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 The changelog starts with version 2.10.0.
-Changes to prior versions can be found on the [Github release page](https://github.com/cryptomator/cryptofs/releases).
+Changes to prior versions can be found on the [GitHub release page](https://github.com/cryptomator/cryptofs/releases).
 
 ## [Unreleased](https://github.com/cryptomator/cryptofs/compare/2.9.0...HEAD)