Update brokers.toml schema

data/brokers.toml

@@ -1,9 +1,25 @@
-[binance]
+[questrade]
+refresh_token = ""
+access_token = ""
+api_server = "https://api02.iq.questrade.com/"
+expires_in = 1800
+token_type = "Bearer"
+expires_at = 1629487755.7784228
 
 [kraken]
+key_descr = "api_0"
+public_key = ""
+private_key = ""
 
+[ib]
+host = "127.0.0.1"
 
-# [ib]
+[ib.ports]
+gw = 4002
+tws = 7497
+order = [ "gw", "tws",]
 
-
+[accounts.ib]
-# [questrade]
+main = ""
+reg = ""
+paper = ""