One of the most common problems GitHub Pages users run into is not seeing
changes that they've made to their site. After you push a new commit to your
repository, it can take up to 10 minutes for the GitHub Pages build process
to complete and for your changes to appear.
If it's been over 10 minutes and your changes still haven't appeared, your
browser may be serving a cached version of the page. To fix this, you can
reset your browser's cache or visit your site in an incognito or private browsing
window.
For help with other Pages errors, please see
Troubleshooting GitHub Pages builds.