Link with url containing space won't render in markdown

[HalfSweet]

Checklist

• I am using LTS version of Node.js.
• I am using the latest v2 version of VuePress and VuePress official plugins.
• I am using the latest v2 version of vuepress-theme-hope and all plugins in this repo.
• I followed the docs and I double checked my configuration.
• I have searched FAQ and I did not find the answer.

Package name

vuepress-theme-hope

Which operating system are you using?

• macOS
• Windows
• Linux

Describe the bug

[正常](https://example.ex/test0.html)

[错误](https://example.ex/test 1.html)

Additional context

No response

[HalfSweet]

在一些markdown渲染器中，例如 Typora 或者 Writeside 中，可以正常渲染[链接文本](URL)中url带空格的情况，不过经过我的查找发现似乎没有做对这种情况的说明…另外我找到了一些规避的方式，使用[链接文本](<URL>)即可，但是当我尝试使用<URL>的方式来进行书写的时候，发现同样会渲染不完全。但是使用[链接文本](<URL>)似乎是完全可行的，我可以在url中包含任何的特殊字符。

感谢您的回复

[Mister-Hope]

The solution is to use actual URL, https://example.com/a b.html is never a valid one, but https://example.com/a%20b.html is.

Marakdown-it playground: https://markdown-it.github.io/#md3=%7B%22source%22%3A%22%5Burl%5D%28https%3A%2F%2Fexample.com%2Fa%20b%29%22%2C%22defaults%22%3A%7B%22html%22%3Afalse%2C%22xhtmlOut%22%3Afalse%2C%22breaks%22%3Afalse%2C%22langPrefix%22%3A%22language-%22%2C%22linkify%22%3Atrue%2C%22typographer%22%3Atrue%2C%22_highlight%22%3Atrue%2C%22_strict%22%3Afalse%2C%22_view%22%3A%22html%22%7D%7D

Commonmark Spec: https://spec.commonmark.org/