Update Salta sprint post

[jmloyola]

Update the post with more information, photos and acknowledgment.

[reshamas]

@jmloyola
Can we add this too:
https://twitter.com/ScipyLA/status/1573710649963724802

[jmloyola]

@reshamas Done. Let me know what do you think

[reshamas]

@jmloyola Can we find out who took the photos and add photo credit?

example code:

<figure>
 <img src="/assets/images/posts_images/sprint-neurips-2011.jpeg" alt="men at a happy hour" max-width="20%" max-height="20%" /> 
 <figcaption>
 NeurIPS Granada, Spain scikit-learn sprint, March 2011; Photo credit: <a href="http://gael-varoquaux.info">Gael Varoquaux</a>; (from left to right): Vlad Niculae, Mathieu Blondel, Bertrand Thirion, James Bergtra, Jake VanderPlas, Andreas Mueller, Alexandre Gramfort
 </figcaption>
</figure>

@jmloyola
Any list of PRs submitted that we can add?

@symeneses
Is there anything you would like to add to this blog?

[jmloyola]

There were no PRs during the sprint. Some folks are working towards their first PR, but I don't know when they'll be able to continue working on that.

Concerning the photo credits, I'm asking the organizers for that.

[reshamas]

Thanks @jmloyola