Adding changelog entry

Author: KoenZomers

CHANGELOG.md

@@ -41,6 +41,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added support for specifying the ContentUrl and WebsiteUrl configuration in `Add-PnPTeamsTab` cmdlet when trying to add a SharePoint page or list as a tab in Teams channel. [#2807](https://github.com/pnp/powershell/pull/2807)
 - Added `-CheckinType` parameter to `Add-PnPFile` cmdlet which provides the option to specify the checkin type for a file. The default value is set to `MinorCheckIn`. [#2806](https://github.com/pnp/powershell/pull/2806)
 - Added `-ApplicationId` as alias for `-ClientId` in `Connect-PnPOnline` and `Request-PnPAccessToken` cmdlets. [#2805](https://github.com/pnp/powershell/pull/2805)
+- Added `-Connection` option to `Connect-PnPOnline` which allows of reusing an authenticated connection to connect to a different site [#2821](https://github.com/pnp/powershell/pull/2821)
 
 ### Changed
 
@@ -78,6 +79,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ### Contributors
 
+- [reusto]
 - Ronald Mavarez [ronaldmavarez]
 - [lilealdai]
 - Martin Lingstuyl [martinlingstuyl]