Files with colon (:) in their name cannot be rendered by GitHub Pages

[eneko]

Brief Description

Files with colon (:) in their name cannot be rendered by GitHub Pages:

A filename in your publishing source contains a colon (:) which is not supported.

https://help.github.com/en/github/working-with-github-pages/troubleshooting-jekyll-build-errors-for-github-pages-sites#troubleshooting-build-errors