Sentinel DataSource Redis 支持了redis 集群

## Issue Description

Type: *bug report* or *feature request*

### Describe what happened (or what feature you want)

当前文档中开篇指出 并不支持redis集群， 但是从后边的代码实例， 以及我实际阅读代码的时候发现当前是支持了集群模式， 是还存在什么问题吗？ 我直接实现上来看是完全没有问题的
### Describe what you expected to happen
希望可以在文档中更新一下 当前支持了redis集群模式

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

最好写明是哪个版本之后开始支持redis集群模式

### Tell us your environment

### Anything else we need to know?

Start with the Sentinel DataSource documentation and its Redis cluster examples, then inspect release history to determine when cluster support became available. Done means the documentation accurately states whether Redis cluster mode is supported and identifies the first supporting version.

Written by the indexing model from the issue text.