Merge branch 'feature/ticker' into 'master'

common/business/ExchangeBusiness.php

@@ -343,7 +343,7 @@ class ExchangeBusiness
 
         if (in_array(strtoupper($tag), ['HDC'])) {
             $exchange = ExchangeFactory::createExchange("Hd");
-            $quotation = $exchange->getTicker('HD', 'USDT');
+            $quotation = $exchange->getTicker('HDC', 'USDT');
             goto doEnd;
         }