graph LR
Start(["`Start`"])
1["`<strong>set</strong><br>config`"]
2["`<strong>binance</strong><br>fetch binance ticker`"]
3{"`<strong>if</strong><br>If spread exceeds threshold`"}
4["`<strong>telegram</strong><br>send spread alert`"]
Start ---> 1
1 ---> 2
2 ---> 3
3 ---> 4