Lost embedded slideshow on triathlon post

[dreeves]

### Desiderata
- [x] NIX: See if Bee remembers anything about how it worked (unnecessary now; fully fixed!)
- [x] Dig up the actual images from the WordPress export?
- [x] Fix it

Replicata

1. Go to https://blog.beeminder.com/tri
2. See where it says "[slideshow id=1]"

Expectata

To see a carousel slideshow thing of rotating images.

Resultata

Just see something a slideshow in brackets.

Nota Nebulosa

How the heck did that used to work on WordPress?

Verbata: gallery of images, carousel, mendoza,

[narthur]

I'm assuming these are the images that were in the slideshow:

[dreeves]

yes, but pretty sure there was also one of bee in the swim?

[narthur]

@dreeves I think this is done now: https://blog.beeminder.com/tri

[narthur]

Looks like we also have a slideshow on this post that needs fixed:

Beeminder's Youngest User

From my search of my local cache, that's the only other instance of a slideshow shortcode in our source files.

[narthur]

/faire slideshow fixed: https://blog.beeminder.com/faire

[narthur]

@dreeves Do we still need @bsoule's input on this? Or can we go ahead and close as complete? I'm certain the old blog was using a WordPress plugin for these slideshows, given the slideshows were designated using shortcodes in the markdown.