XMR-Stak example pools.txt:

"pool_list" :
[
{"pool_address" : "electroneum.herominers.com:10211", "wallet_address" : "YOUR_WALLET_ADDRESS", "rig_id" : "", "pool_password" : "YOUR_WORKER_NAME", "use_nicehash" : false, "use_tls" : false, "tls_fingerprint" : "", "pool_weight" : 100 },
],

"currency" : "cryptonight",