kraken.spot.Trade.create_order: documentatoin for txid outdated.

[andyDoucette]

The documentation states that the result when you create an order has txid as a string:

trade.create_order(
    ordertype="market",
    side="buy",
    pair="XBTUSD",
    volume="0.0001"
)
{
    'txid': 'TNGMNU-XQSRA-LKCWOK',
    'descr': {
        'order': 'buy 4.00000000 XBTUSD @ limit 23000.0'
    }
}

Unfortunately, I'm getting a list, not a string.

The latest Kraken API documentatoin for /private/AddOrder states that txid is:

Transaction IDs for order
(if order was added successfully)

So, I think the documentation for create_order should probably be updated to reflect the fact that txid is now a list.

Thanks! :)

[btschwertfeger]

Hey @andyDoucette - you are right! I will adjust this in #95. Thanks too!