`mdbook-katex` CSS Download

Executable to download static CSS and fonts for mdbook-katex.

Usage

Install this executable
```
cargo install mdbook_katex_css_download
```
cd to the root of your mdBook project.
Run mdbook_katex_css_download.
If you see no error, you are good to go. If it panics and the first error message suggests connection failure, it might just be a network problem, try again.
If it panics and the error is not connection failure, or it fails again and again, open an issue.

A large portion of the code here is extracted from mdbook-katex. The original author of the extracted code is Matthewacon. Their last commit.