Update zpush source code

README.md

@@ -880,7 +880,7 @@ _Related: [Groupware](#groupware)_
 - [SparkleShare](https://sparkleshare.org/) - Self hosted, instant, secure file sync. ([Source Code](https://github.com/hbons/SparkleShare)) `GPL-3.0` `C#`
 - [Syncthing](https://syncthing.net/) - Syncthing is an open source peer-to-peer file synchronisation tool. ([Source Code](https://github.com/syncthing/syncthing)) `MPL-2.0` `Go`
 - [Unison](https://www.cis.upenn.edu/~bcpierce/unison/) - Unison is a file-synchronization tool for OSX, Unix, and Windows. ([Source Code](https://github.com/bcpierce00/unison)) `GPL-3.0` `OCaml`
-- [Z-Push](https://z-push.org/) - Implementation of Microsoft’s ActiveSync protocol. ([Source Code](https://stash.kopano.io/projects/ZHUB/repos/z-push)) `AGPL-3.0` `PHP`
+- [Z-Push](https://z-push.org/) - Implementation of Microsoft’s ActiveSync protocol. ([Source Code](https://stash.kopano.io/projects/ZHUB/repos/z-push/browse)) `AGPL-3.0` `PHP`
 
 
 ### File Transfer - Distributed Filesystems