Alt-text tips you probably don't know

I happened on a couple of articles about writing better image alt-text on my reading page, so I'd like to share the links and list some of the things I didn't know and you might not, either.

Alt-texts: The Ultimate Guide (via alisx)
Alternative Text (via jesse_the_k)

( Alt text basics in HTML and Markdown )

( Tell you something you don't know? )