Post and info about tomorrow

I added rough export of yesterday's class, but not full
detail. I will add more later.

Class tomorrow will be on zoom, link is on the course org page
and will be on prismia at class tomorrow.

Prep work is quick, but important.

What's Changed

• Updated testimonials.md by @Oduran9 in #19

New Contributors

• @Oduran9 made their first contribution in #19

Full Changelog: c23...c24