[documentation] fix some links not consistent with install manual title

```
- [Kubernetes 平台部署](docs/Kubernetes/deploy_xenondb_on_kubernetes.md)
- [KubeSphere 应用商店部署](docs/KubeSphere/deploy_xenondb_on_kubesphere.md)
```
在 Kubenetes 在 Kubernetes 上部署 XenonDB 集群
在 Kubesphere 上部署 XenonDB 集群

Modify the description of the two links to be consistent with the title of the original text

