Describe the problem

The example showing how to use github icons is not working locally or on the doc site https://sphinx-design.readthedocs.io/en/furo-theme/badges_buttons.html?highlight=icons#inline-icons for the furo theme.

Link to your repository or website

No response

Steps to reproduce

https://sphinx-design.readthedocs.io/en/furo-theme/badges_buttons.html?highlight=icons#inline-icons