Add a link to the Azure Kubernetes Service offering

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

README.md

@@ -141,7 +141,7 @@ APT and YUM repositories are [available](./docs/repo.md).
 SFTPGo is also available on some marketplaces:
 
 - [AWS Marketplace](https://aws.amazon.com/marketplace/seller-profile?id=6e849ab8-70a6-47de-9a43-13c3fa849335)
-- Azure Marketplace: [SFTPGo for Linux](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/eliamarzia1667381463185.sftpgo_linux), [SFTPGo for Windows](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/eliamarzia1667381463185.sftpgo_windows)
+- Azure Marketplace: [SFTPGo for Linux](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/eliamarzia1667381463185.sftpgo_linux), [SFTPGo for Windows](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/eliamarzia1667381463185.sftpgo_windows), [SFTPGo for AKS](https://azuremarketplace.microsoft.com/en-us/marketplace/apps/eliamarzia1667381463185.sftpgo_aks).
 - [Elest.io](https://elest.io/open-source/sftpgo)
 
 Purchasing from there will help keep SFTPGo a long-term sustainable project.