Update official_account.md (#2604)

docSite/content/zh-cn/docs/course/official_account.md

@@ -62,6 +62,23 @@ weight: 113
 34.142.157.52
 ```
 
+国内版用户（fastgpt.cn)可以填写下面的 IP 白名单：
+
+```
+47.97.59.172
+121.43.108.48
+121.41.75.88
+121.41.178.7
+121.40.65.187
+121.196.235.183
+120.55.195.90
+120.55.193.112
+120.26.229.115
+112.124.41.79
+101.37.205.32
+47.98.190.173
+```
+
 ## 4. 获取AES Key，选择加密方式
 
 ![图片](/imgs/offiaccount-5.png)