Updates changelog

CHANGELOG.md

@@ -5,6 +5,9 @@ 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).
 
+## 4.0.1
+- Prevents HTTPPageRenderer trying to fetch page if its URL is invalid (eg. "#")
+
 ## 4.0.0
 - **BREAKING** 1ef25d9 automatically reads options from configuration (appsettings.json) when starting
 - **BREAKING** #86 Changed the default rendering to use HttpClient, and abstracted the page rendering, so you can switch based on preferences / 🙏 [enkelmedia](https://github.com/enkelmedia)