Sphinx Extension adding support for custom favicons

 A Sphinx extension to add custom favicons
 .
 With Sphinx Favicon, you can add custom favicons to your Sphinx html
 documentation quickly and easily.
 .
 You can define favicons directly in your `conf.py`, with different `rel`
 attributes such as [`"icon"`]
 or [`"apple-touch-icon"`] and any favicon size.
 .
 The Sphinx Favicon extension gives you more flexibility than the standard
 `favicon.ico` supported by Sphinx. It provides a quick and easy way to add
 the most important favicon formats for different browsers and devices.