improve links

Author: mregen

articles/iot-accelerators/howto-opc-vault-deploy.md

@@ -14,6 +14,9 @@ manager: philmea
 
 This article explains how to deploy the OPC UA Certificate Management Service in Azure.
 
+> [!NOTE]
+> For more information on deployment details and instructions, see the GitHub [OPC Vault repository](https://github.com/Azure/azure-iiot-opc-vault-service).
+
 ## Prerequisites
 
 ### Install required software

articles/iot-accelerators/howto-opc-vault-secure.md

@@ -19,13 +19,13 @@ This article explains how to register applications and how to issue signed appli
 ### Deploy the Certificate Management Service
 
 First of all, the service needs to be deployed to the Azure cloud.
-Please find an article describing how to deploy the Certificate Management Service [here](howto-opc-vault-deploy.md).
+Please find an article describing how to [deploy the OPC Vault Certificate Management Service](howto-opc-vault-deploy.md).
 
 ### Create the Issuer CA certificate
 
 If you have not done so yet, create the Issuer CA certificate.
 
-Find an article describing how to create and manage the Issuer certificate [here](howto-opc-vault-manage.md).
+Find an article describing how to [create and manage the Issuer certificate for OPC Vault](howto-opc-vault-manage.md).
 
 ## Secure OPC UA applications