Using the plus editor (both your version and selfhosting it) I get a 404:
404
File not found
The site configured at this address does not contain the requested file.
If this is your site, make sure that the filename case matches the URL.
For root URLs (like http://example.com/) you must provide an index.html file.
Read the full documentation for more information about using GitHub Pages.
Hello!
Using the plus editor (both your version and selfhosting it) I get a 404:
404 File not found The site configured at this address does not contain the requested file. If this is your site, make sure that the filename case matches the URL. For root URLs (like http://example.com/) you must provide an index.html file. Read the full documentation for more information about using GitHub Pages.