Merge pull request #26 from seymourtang/fix/doc

fix(doc): Correct API documentation links in README files

Author: seymourtang

services/convoai/README.md

@@ -29,7 +29,7 @@ Agora's Conversational AI Engine redefines human-computer interaction, breaking
 
 ## API Definition
 
-For more api details, please refer to the [API Documentation](https://doc.shengwang.cn//api-ref/convoai/go/go-api/overview)
+For more api details, please refer to the [API Documentation](https://doc.shengwang.cn/api-ref/convoai/go/go-api/overview)
 
 ## API Call Examples
 

services/convoai/README_ZH.md

@@ -29,7 +29,7 @@
 
 ## API定义
 
-更多API详情，请参考 [API文档](https://doc.shengwang.cn//api-ref/convoai/go/go-api/overview)
+更多API详情，请参考 [API文档](https://doc.shengwang.cn/api-ref/convoai/go/go-api/overview)
 
 ## API调用示例