Fix image location for pkgdown

[maelle]

Missing images in '/tmp/Rtmpy2xPLS/MODIStsp-source/index.md': 'reference/figures/irea_logo.png'
ℹ pkgdown can only use images in 'man/figures' and 'vignettes' 

happy to help if needed!

[maelle]

What's the goal of this bot workflow, out of curiosity @ranghetti?

[ranghetti]

I introduced the bot after a career change that did not allow me to continue providing assistance for the packages which I was maintaining. Currently I am limiting to strictly necessary package maintenance (e.g. #257). If it would be possible to have an help from rOpenSci community I would be happy to remove the bot (I would have deepen this topic as soon as I would have had time).
Regarding the issue, I will manage it as soon as possible.

[maelle]

Do you mean you'd need to recruit a co-maintainer? We could add a call for co-maintainer in the next newsletter. (or even a new maintainer if you'd prefer to step down -- thanks for your work on this package until now in any case) You could open an issue in this repo describing what tasks often occur, and we'd link to it. How would that sound?

[ranghetti]

You could open an issue in this repo describing what tasks often occur, and we'd link to it. How would that sound?

@maelle thank you, I will move in this direction as soon as possible.

[maelle]

Thanks, please ping me when you've done that. 🙏

[ranghetti]

In the meanwhile, last commit should have fixed the topic of this issue.
(Ps. I am also seeing this https://github.com/r-universe/ropensci/actions/runs/2977880182 , in which the error is not present even if the run is before the fix)

[maelle]

Yes this is a warning not a bug, but I reported it because missing images can be annoying. I saw it because there used to be an error too (#259). Thank you!