changed some stuff (#182)

chess.md

@@ -8,10 +8,10 @@ Winner take all Chess Tournament. <br>
 
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-$20 buy-in (75k sats); Use the button below to reserve your slot.
+$20 buy-in (31,638 sats); Use the button below to reserve your slot.
 
-<a href="https://checkout.opennode.com/p/8f82e010-b7b7-4425-99ac-4f10502a89c0" target="_blank"><img style="width:200px;" src="https://app.opennode.com/pay-with-bitcoin.svg"/></a>
+<a href="https://btcpay386958.lndyn.com/apps/2vocXKGKVPVN1r6AnyBVHv8aThWv/pos" target="_blank"><img style="width:200px;" src="https://app.opennode.com/pay-with-bitcoin.svg"/></a>
 
 *** 
 
-<img align="center" width="400" src="assets/img/web/chess.png"><br>
+<img align="center" width="400" src="https://www.jondomedia.com/tabconf/tabchess.jpg"><br>