[BlindMath] Learn Latex, Cheat sheets and Quarto

[Jonathan Fine]

Hi David

Thank you for your interest, and apologies for the various errors. I have
fixed one broken link on the website. The link was to [Latex math]. I'm not
aware of any other broken links.

Regarding the link to clone, there is a [Code] button on
https://github.com/texhour/quarto which should work for you if you can find
it.

If you have further queries, perhaps contact me off-list. I'd be pleased to
help you.

By the way, I've added an issue that asks me to improve the 404 page. Thank
you.

with best regards

Jonathan