DOC: Fix cheatsheet automatic uploading
Follow up of #44018.

I didn't realize before merging that we were first uploading the web directory, and then copying the cheatsheets to it, so they won't be uploaded. The cheatsheets will be removed from the website in the CI of hte previous PR, so would be good to merge this asap, so the cheatsheets are restored.

Seems like this worked, the cheat sheets were correctly uploaded to the server, but for whatever reason (I guess a memory cache) nginx is still serving the old file. I tried to restart nginx, but I don't think I've got permissions to do it. Let's see if the new file starts being served eventually, or I'll check with NumFOCUS if they can restart nginx. I think the cache issue may have been on your browser.  I am now getting the latest version of the cheat sheet.  But now https://pandas.pydata.org/docs/ is a mess - the formatting is gone.
![image](https://user-images.githubusercontent.com/15113894/137781625-c269a07d-3ea4-40a4-b293-2ded0078f10e.png)
 Thanks for the info. I created #44087, where I guessed the problem is cloudflare or similar. If it works for you, that may be the case, cloudflare usually caches depending on your location.

https://pandas.pydata.org/docs/ renders correctly here, I guess the request to a css file fail in your end. Can you reload and see if it's fixed? > https://pandas.pydata.org/docs/ renders correctly here, I guess the request to a css file fail in your end. Can you reload and see if it's fixed?

Yes, reloading worked.  Should have tried that. Ok, and I'm getting the new cheatsheet now too, all good :)