Add a description of the project

[tonycody]

Consider adding an item description in this location, and presenting that description here if the user configured it when deploying Nacos.

There are scenarios where Nacos is deployed in multiple different locales, and it would be a better experience to identify Nacos in different locales when they have such a project description.

考虑在这个位置增加一个项目描述，如果用户在部署 Nacos 时配置了该描述则呈现该描述信息在此处。

有些场景 Nacos 部署在多个不同的地域，对于识别不同地域的 Nacos 有这样一个项目描述时，识别性的体验会好一些。

[tonycody]

I'll fix it.