Added PR reference

Author: KoenZomers

CHANGELOG.md

@@ -62,7 +62,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added `-Name` parameter to `Add-PnPApplicationCustomizer` cmdlet to allow for specifying the name of the application customizer [#4767](https://github.com/pnp/powershell/pull/4767)
 - Added `Get-PnPTraceLog` cmdlet which allows reading from the detailed in memory logs of the PnP PowerShell cmdlet execution [#4794](https://github.com/pnp/powershell/pull/4794)
 - Added `-Transitive` parameter to `Get-PnPAzureADGroupMember` cmdlet to allow members of groups inside groups to be retrieved [#4799](https://github.com/pnp/powershell/pull/4799)
-- Added the ability to `Get-PnPPage` to return all site pages in the site by omitting the `-Identity` parameter
+- Added the ability to `Get-PnPPage` to return all site pages in the site by omitting the `-Identity` parameter [#4805](https://github.com/pnp/powershell/pull/4805)
 
 ### Changed