How to add 2 additional logos - top right and top left - in betterland template?

[RPorneso]

Hi, I'm using one of your templates and I'd like to add 2 logos on the top left and top right corner of the main section. Is there a way to quickly do this on my own by adding arguments in YAML? Attached is the poster as it is now (still needs cleaning up with the figures, etc).

Non-additive genetic effects in academic performance v4.pdf