配置：关于 gRPC 参数描述不准确含义模糊

[cfzjywxk]

Error 报告

This repository is ONLY used to solve problems related to DOCS-CN.
For other issues (TiDB, TiKV, etc), please move to other repositories.

tidb 配置中
https://docs.pingcap.com/zh/tidb/stable/tidb-configuration-file#grpc-keepalive-time
和
https://docs.pingcap.com/zh/tidb/stable/tidb-configuration-file#grpc-keepalive-timeout

相关描述不清晰。

应当参考
https://pkg.go.dev/google.golang.org/grpc/keepalive#ClientParameters
gRPC 文档描述进行描述

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1. What is the document directory for the problem?

如上

2. How would you like to improve it?

修改对应描述