Update temporary link for Netwitness

Author: EswarHariKumar

articles/virtual-network/virtual-network-tap-overview.md

@@ -62,7 +62,7 @@ The accounts you use to apply TAP configuration on network interfaces must be as
 - [Netscout vSTREAM]( https://www.netscout.com/marketplace-azure)
 - [Noname Security](https://nonamesecurity.com/)
 - [Riverbed SteelCentral AppResponse]( https://www.riverbed.com/products/steelcentral/steelcentral-appresponse-11.html)
-- [RSA NetWitness® Platform](https://www.netwitness.com)
+- [RSA NetWitness® Platform](https://community.netwitness.com/t5/netwitness-platform-online/configure-packet-capture-for-azure-cloud-environment/ta-p/695490)
 - [Vectra Cognito](https://vectra.ai/microsoftazure)