Configuration items are added to the official website documentation

- [ ] I have searched the [issues](https://github.com/seata/seata/issues) of this repository and believe that this is not a duplicate.

### Ⅰ. Issue Description

需要对 https://github.com/seata/seata/blob/develop/script/config-center/config.txt 中的配置查漏补缺，补充至 https://seata.io/zh-cn/docs/user/configurations.html
需要改动对应仓库的文件为：
https://github.com/seata/seata.github.io/blob/develop/docs/zh-cn/user/configurations.md

### Ⅱ. Describe what happened

If there is an exception, please attach the exception trace:

```
Just paste your stack trace here!
```

### Ⅲ. Describe what you expected to happen

### Ⅳ. How to reproduce it (as minimally and precisely as possible)

1. xxx
2. xxx
3. xxx

### Ⅴ. Anything else we need to know?

### Ⅵ. Environment:

- JDK version :
- Seata version:
- OS :
- Others: