Fixes url in changelog for release v0.5

Related to #57

Author: dnperfors

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to TestableHttpClient 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).
 
-## [Unreleased]
+## [0.5] - 2020-06-25
 ### Deprecated
 - `WithUriPattern(this IHttpRequestMessagesCheck, string)` will be removed in favour of `WithRequestUri(this IHttpRequestMessagesCheck, string)`
 - `With(Func<HttpRequestMessage, bool>, string)` will be removed in favour of `WithFilter(Func<HttpRequestMessage, bool>, string)`, since it conflicts with the language keyword `with`.
@@ -158,7 +158,7 @@ this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Automatically build project when pushing changes to github and when creating a pull request
 - Automatically deploy to NuGet when creating a tag in github
 
-[Unreleased]: https://github.com/dnperfors/TestableHttpClient/compare/v0.4...HEAD
+[0.5]: https://github.com/dnperfors/TestableHttpClient/compare/v0.4...v0.5
 [0.4]: https://github.com/dnperfors/TestableHttpClient/compare/v0.3...v0.4
 [0.3]: https://github.com/dnperfors/TestableHttpClient/compare/v0.2...v0.3
 [0.2]: https://github.com/dnperfors/TestableHttpClient/compare/v0.1...v0.2