Update changelog

Author: chocolatkey

CHANGELOG.md

@@ -6,13 +6,17 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.8.0] - 2025-02-22
+
 ### Added
 
 - Support for [EPUB Accessibility 1.1](https://www.w3.org/TR/epub-a11y-11/) conformance values
+- `--version` flag for `rwp`
+- Output of `go-toolkit` version in WebPub metadata. [Based on the Go module pseudo-version](https://github.com/readium/go-toolkit/issues/80#issuecomment-2673888192)
 
 ### Changed
 
-- A11y `conformsTo` values are now sorted from highest to lowest level
+- A11y `conformsTo` values are now sorted from highest to lowest conformance level
 
 ## [0.7.1] - 2025-02-07