diff --git a/example/get_started_en.ipynb b/example/get_started_en.ipynb
index bdff7cb..7c74992 100644
--- a/example/get_started_en.ipynb
+++ b/example/get_started_en.ipynb
@@ -212,7 +212,7 @@
    "source": [
     "import okx.MarketData as MarketData\n",
     "\n",
-    "flag = \"1\"  # live trading:0 , demo trading：1\n",
+    "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
     "marketDataAPI = MarketData.MarketAPI(flag=flag)\n",
     "\n",
@@ -256,7 +256,7 @@
    "outputs": [],
    "source": [
     "import okx.Account as Account\n",
-    "flag = \"1\"  # live trading:0 , demo trading：1\n",
+    "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
     "accountAPI = Account.AccountAPI(api_key, secret_key, passphrase, False, flag)\n",
     "\n",
@@ -290,17 +290,17 @@
      "evalue": "'MarketAPI' object has no attribute 'get_instruments'",
      "output_type": "error",
      "traceback": [
-      "\u001B[0;31m---------------------------------------------------------------------------\u001B[0m",
-      "\u001B[0;31mAttributeError\u001B[0m                            Traceback (most recent call last)",
-      "Input \u001B[0;32mIn [1]\u001B[0m, in \u001B[0;36m<cell line: 7>\u001B[0;34m()\u001B[0m\n\u001B[1;32m      3\u001B[0m flag \u001B[38;5;241m=\u001B[39m \u001B[38;5;124m\"\u001B[39m\u001B[38;5;124m1\u001B[39m\u001B[38;5;124m\"\u001B[39m  \u001B[38;5;66;03m# live trading:0 , demo trading：1\u001B[39;00m\n\u001B[1;32m      5\u001B[0m marketDataAPI \u001B[38;5;241m=\u001B[39m MarketData\u001B[38;5;241m.\u001B[39mMarketAPI(flag\u001B[38;5;241m=\u001B[39mflag)\n\u001B[0;32m----> 7\u001B[0m result \u001B[38;5;241m=\u001B[39m \u001B[43mmarketDataAPI\u001B[49m\u001B[38;5;241;43m.\u001B[39;49m\u001B[43mget_instruments\u001B[49m(\n\u001B[1;32m      8\u001B[0m    instType\u001B[38;5;241m=\u001B[39m\u001B[38;5;124m\"\u001B[39m\u001B[38;5;124mSPOT\u001B[39m\u001B[38;5;124m\"\u001B[39m\n\u001B[1;32m      9\u001B[0m )\n\u001B[1;32m     10\u001B[0m \u001B[38;5;28mprint\u001B[39m(result)\n",
-      "\u001B[0;31mAttributeError\u001B[0m: 'MarketAPI' object has no attribute 'get_instruments'"
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)",
+      "Input \u001b[0;32mIn [1]\u001b[0m, in \u001b[0;36m<cell line: 7>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      3\u001b[0m flag \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m1\u001b[39m\u001b[38;5;124m\"\u001b[39m  \u001b[38;5;66;03m# live trading:0 , demo trading：1\u001b[39;00m\n\u001b[1;32m      5\u001b[0m marketDataAPI \u001b[38;5;241m=\u001b[39m MarketData\u001b[38;5;241m.\u001b[39mMarketAPI(flag\u001b[38;5;241m=\u001b[39mflag)\n\u001b[0;32m----> 7\u001b[0m result \u001b[38;5;241m=\u001b[39m \u001b[43mmarketDataAPI\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mget_instruments\u001b[49m(\n\u001b[1;32m      8\u001b[0m    instType\u001b[38;5;241m=\u001b[39m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mSPOT\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[1;32m      9\u001b[0m )\n\u001b[1;32m     10\u001b[0m \u001b[38;5;28mprint\u001b[39m(result)\n",
+      "\u001b[0;31mAttributeError\u001b[0m: 'MarketAPI' object has no attribute 'get_instruments'"
      ]
     }
    ],
    "source": [
     "import okx.MarketData as MarketData\n",
     "\n",
-    "flag = \"1\"  # live trading:0 , demo trading：1\n",
+    "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
     "marketDataAPI = MarketData.MarketAPI(flag=flag)\n",
     "\n",
@@ -378,7 +378,7 @@
    "source": [
     "import okx.Account as Account\n",
     "\n",
-    "flag = \"1\"  # live trading:0 , demo trading：1\n",
+    "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
     "accountAPI = Account.AccountAPI(api_key, secret_key, passphrase, False, flag)\n",
     "result = accountAPI.get_account_config()\n",
@@ -430,7 +430,7 @@
    "source": [
     "import okx.Trade as Trade\n",
     "\n",
-    "flag = \"1\"  # live trading:0 , demo trading：1\n",
+    "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
     "tradeAPI = Trade.TradeAPI(api_key, secret_key, passphrase, False, flag)"
    ]
@@ -1090,4 +1090,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 1
-}
\ No newline at end of file
+}