Update testnet to testnet-2.0 in docs
Update testnet to testnet-2.0 in docs

zigbee-alliance/distributed-compliance-ledger,zigbee-alliance/distributed-compliance-ledger,zigbee-alliance/distributed-compliance-ledger,zigbee-alliance/distributed-compliance-ledger,zigbee-alliance/distributed-compliance-ledger,zigbee-alliance/distributed-compliance-ledger