CodeIgniter website ported to CodeIgniter 4

Fixed the user guide links that were resulting in endless loops.

Not sure it's fixed yet. When I browse to https://codeigniter.com/user_guide/

I'm getting the error page with...

This page isn’t working
codeigniter.com redirected you too many times.

ERR_TOO_MANY_REDIRECTS

If I append the URL with a file name, i.e. https://codeigniter.com/user_guide/index.html it works.

That is correct. The link in the website has been fixed, but there is still an issue trying to  reference the user guide without the index.html. So, my solution is only partial & I still have a misconfiguration to track down