Update overview.md

SEV-SNP CVMs are now GA and also offer encryption of data while in use

Author: AlecFernandez

articles/attestation/overview.md

@@ -72,7 +72,7 @@ Azure Attestation is the preferred choice for attesting TEEs as it offers the fo
 - Unified framework for attesting multiple environments such as TPMs, SGX enclaves and VBS enclaves 
 - Allows creation of custom attestation providers and configuration of policies to restrict token generation
 - Offers [regional shared providers](basic-concepts.md#regional-shared-provider) which can attest with no configuration from users
-- Protects its data while-in use with implementation in an SGX enclave
+- Protects its data while-in use with implementation in an SGX enclave or Confidential Virtual Macine based on AMD SEV-SNP
 - Highly available service 
 
 ## How to establish trust with Azure Attestation