Update CHANGELOG.md

Author: gautamdsheth

CHANGELOG.md

@@ -17,6 +17,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added `Set-PnPOrgAssetsLibrary` cmdlet which allows for updating the settings of an existing organizational assets library [#4254](https://github.com/pnp/powershell/pull/4254)
 - Added additional Graph permissions to the GraphPermissions parameter set. [#4283](https://github.com/pnp/powershell/pull/4283)
 - Added `-SignInAudience` parameter to `Register-PnPEntraIDApp` and `Register-PnPEntraIDAppForInteractiveLogin` which allows you to make the EntraID app support creation of multi-tenant apps. [#4289](https://github.com/pnp/powershell/pull/4289)
+- Added `-OutputInstance` parameter to `Export-PnPPage` cmdlet to allow export of the page as in-memory template. [#4323](https://github.com/pnp/powershell/pull/4323)
 
 ### Changed