Add Protocol to maintainer config
Added Protocol to tbtc-maintainer config template. Maintainer now
supports both `TLS` and `SSL` options.
[electrum]
ServerHost = "electrumx-server.tbtc.svc.cluster.local"
ServerPort = "50002"
+ Protocol = "SSL" # TCP or SSL
# Connection details for Block Cypher API.
[blockcypher]
