limitations of github pages, and how to use it

Copy-pasting from an email I sent - the full documentation is, of course, at https://docs.github.com/en/pages/getting-started-with-github-pages/creating-a-github-pages-site

To log in to github, please go to github.com and sign in with
username
password 

Once your email is confirmed, you can change the password also, and also set 2 factor authentication with your phone number if you wish.

To add files, after logging in, you need to go to

https://github.com/theusername/thereponame

and choose the "Add file" on the top right.

Limitations of this free Github pages account -
1. individual files are limited to either 100 MB (or 20 MB with the web interface) or something like that.
2. total space used by all files combined must be less than 1 GB.
3. even if you delete files, they can still be seen by someone who knows where to look, ie via github.com/theusername/thereponame
(for permanent deletion, you will need my help.)