Update changelog format

Signed-off-by: AKP <tom@tdpain.net>

Author: codemicro

CHANGELOG.md

@@ -4,64 +4,52 @@ 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).
 
-## [Unreleased]
+## Unreleased
 
-## [0.3.4] - 2022-01-19
+## 0.3.4 - 2022-01-19
 ### Added
 * Support for `ETag` and `Last-Modified` headers in feed responses
 ### Changed
 * Added version number to email footer
 
-## [0.3.3] - 2022-08-31
+## 0.3.3 - 2022-08-31
 ### Fixed
 * Feed entries can now be deleted. [#1](https://github.com/codemicro/walrss/issues/1)
 * Proper errors are shown when attempting to register with an in-use email address. [#2](https://github.com/codemicro/walrss/issues/2)
 
-## [0.3.2] - 2022-08-13
+## 0.3.2 - 2022-08-13
 ### Added
 * OIDC support
 
-## [0.3.1] - 2022-08-13
+## 0.3.1 - 2022-08-13
 This one deploys.
 
-## [0.3.0] - 2022-08-13
+## 0.3.0 - 2022-08-13
 ### Changed
 * Migrated to SQLite in favour of BoltDB. This a completely breaking change.
 
-## [0.2.3] - 2022-06-01
+## 0.2.3 - 2022-06-01
 ### Added
 * Added a user agent to any requests made by Walrss (a very basic regex for this is `walrss(\/(\d|\.){5})? \(https:\/\/github\.com\/codemicro\/walrss\)`)
 
-## [0.2.2] - 2022-05-08
+## 0.2.2 - 2022-05-08
 ### Fixed
 * Feed entries from midnight on a given day are no longer mistakenly ignored.
 
-## [0.2.1] - 2022-04-29
+## 0.2.1 - 2022-04-29
 ### Fixed
 * Digest emails no longer contain three extra days worth of feed items
 
-## [0.2.0] - 2022-04-29
+## 0.2.0 - 2022-04-29
 ### Added
 * Progress display for test emails
 
-## [0.1.1] - 2022-04-16
+## 0.1.1 - 2022-04-16
 ### Added
 * Support for OPML imports and exports
 
 ### Fixed
 * Secure cookies are no longer sent when debug mode is enabled
 
-## [0.1.0] - 2022-04-14
+## 0.1.0 - 2022-04-14
 Initial release
-
-[Unreleased]: https://github.com/codemicro/walrss/compare/v0.3.3...HEAD
-[0.3.3]: https://github.com/codemicro/walrss/releases/tag/v0.3.3
-[0.3.2]: https://github.com/codemicro/walrss/releases/tag/v0.3.2
-[0.3.1]: https://github.com/codemicro/walrss/releases/tag/v0.3.1
-[0.3.0]: https://github.com/codemicro/walrss/releases/tag/v0.3.0
-[0.2.3]: https://github.com/codemicro/walrss/releases/tag/v0.2.3
-[0.2.2]: https://github.com/codemicro/walrss/releases/tag/v0.2.2
-[0.2.1]: https://github.com/codemicro/walrss/releases/tag/v0.2.1
-[0.2.0]: https://github.com/codemicro/walrss/releases/tag/v0.2.0
-[0.1.1]: https://github.com/codemicro/walrss/releases/tag/v0.1.1
-[0.1.0]: https://github.com/codemicro/walrss/releases/tag/v0.1.0