copyright request

[Greta Bramerdorfer]

Hi,
I have a rather unconventional request to the authors of the web page of bedtools. I want to use the figures, which nicely explain the relative distance function in my masters thesis, and want to ask if I have the permission to do so?
I would not alter the figures, I would just display and explain them.
You can find the figures, that I refer to here: 

https://bedtools.readthedocs.io/en/latest/content/tools/reldist.html

Thank you,
Greta Bramerdorfer