Added Aster reference

Examples/BlazorClient/Pages/OrderBooks.razor

@@ -1,6 +1,7 @@
 @page "/OrderBooks"
 @using System.Collections.Concurrent
 @using System.Timers
+@using Aster.Net.Interfaces
 @using Binance.Net.Interfaces
 @using BingX.Net.Interfaces
 @using Bitfinex.Net.Interfaces
@@ -27,6 +28,7 @@
 @using Toobit.Net.Interfaces;
 @using WhiteBit.Net.Interfaces
 @using XT.Net.Interfaces
+@inject IAsterOrderBookFactory asterFactory
 @inject IBinanceOrderBookFactory binanceFactory
 @inject IBingXOrderBookFactory bingXFactory
 @inject IBitfinexOrderBookFactory bitfinexFactory
@@ -83,6 +85,7 @@
 
         _books = new Dictionary<string, ISymbolOrderBook>
             {
+                { "Aster", binanceFactory.CreateSpot("ETHUSDT") },
                 { "Binance", binanceFactory.CreateSpot("ETHBTC") },
                 { "BingX", bingXFactory.CreateSpot("ETH-BTC") },
                 { "Bitfinex", bitfinexFactory.Create("tETHBTC") },