Add page “teach”

[julienrf]

Also add a blog article announcing the publication of the page.

Add a link from the front page to the “teach” page.

Many thanks to the teachers who helped me write the content: Björn Regnell, Mark Lewis, Lionel Parreaux, Jaemin Hong, and Jonathan Brachthäuser.

Here are some screenshots showing how it looks like.

There is a new box in the front page:

Clicking on it shows the following content:

Clicking on “Teaching” shows the following content:

Finally, here is the blog article:

[SethTisue]

Nitpick: I would suggest avoiding the word "polyvalent", which I had to look up in the dictionary. (Even in body text I would avoid it, but especially in a headline.)

[julienrf]

Thank you for the review! Which word would be more appropriate? I sometimes use “versatile” but I thought it could have a negative connotation.

[SethTisue]

I don't see any problem with "versatile"