text: Title: "Buyer order ID" and "Seller order ID" ?
  Body: ### Where can one find a detailed description of websocket data?
  
  The Binance docs do not explain anything.
  
  I am curious about the Binance trade fields from the websocket.
  What exactly are the "**Buyer order ID**" and "**Seller order ID**" ?
  
  Is there a place (even non-Binance) to find descriptions of other fields in detail?