add date to 2.0.0

README.md

@@ -430,7 +430,7 @@ See [CONTRIBUTING.md](https://github.com/pantheon-systems/pantheon-advanced-page
 ## Changelog ##
 ### 2.0.1-dev ###
 
-### 2.0.0 ###
+### 2.0.0 (28 May 2024) ###
 * Adds new admin alerts and Site Health tests about default cache max age settings and recommendations [[#268](https://github.com/pantheon-systems/pantheon-advanced-page-cache/pull/268), [#271](https://github.com/pantheon-systems/pantheon-advanced-page-cache/pull/271)]. The default Pantheon GCDN cache max age value has been updated to 1 week in the [Pantheon MU plugin](https://github.com/pantheon-systems/pantheon-mu-plugin). For more information, see the [release note](https://docs.pantheon.io/release-notes/2024/04/pantheon-mu-plugin-1-4-0-update).
 * Updated UI in Pantheon Page Cache admin page when used in a Pantheon environment (with the Pantheon MU plugin). [[#272](https://github.com/pantheon-systems/pantheon-advanced-page-cache/pull/272)] This UI change takes effect when [Pantheon MU plugin version 1.4.3](https://docs.pantheon.io/release-notes/2024/05/pantheon-mu-plugin-1-4-3-update) is available on your site.
 * Automatically updates the cache max age to the recommended value (1 week) if it was saved at the old default value (600 seconds). [[#269](https://github.com/pantheon-systems/pantheon-advanced-page-cache/pull/269)]