Fix WooCommerce callback

src/WooCommerce.hs

@@ -89,7 +89,7 @@ payWooOrder ::
   -> BS.ByteString -- Total ZEC for order
   -> IO ()
 payWooOrder u i o t p z = do
-  wooReq <- parseRequest $ u ++ "/wc-api/zconfirm"
+  wooReq <- parseRequest $ u ++ "/?wc-api=zpmtcallback"
   let req =
         setRequestQueryString
           [ ("token", Just t)