Update multi-party-data.md

Added Azure Confidential Clean Rooms content

Author: lakmeedee

articles/confidential-computing/multi-party-data.md

@@ -63,6 +63,11 @@ _Code integrity and confidential ledgers:_ With distributed ledger technology (D
 
 ## What are options to get started?
 
+### Azure Confidential Clean Rooms (Preview)
+[Azure Confidential Clean Rooms (ACCR)](./confidential-clean-rooms.md) is designed for organizations that need to share privacy sensitive data such as personally identifiable information (PII) or protected health information (PHI) securely with other organizations to derive business critical insights which can be securely fine-tuning your ML model with sensitive data from other organizations for improved accuracy or performing secure analytics on joint data with your partner organizations. ACCR uses confidential containers on Azure Container Instances to ensure that your data stays protected from other collaborators and from Azure operators. It has applications spanning multiple industries such as healthcare, advertising, banking and financial services and retail.
+
+You can enrol yourself for the ACCR preview by submititng this [form](https://aka.ms/ACCR-Preview-Onboarding).
+
 ### ACC platform offerings that help enable confidential cleanrooms
 Roll up your sleeves and build a data clean room solution directly on these confidential computing service offerings.