glitch in the docs for jb1, in the section on folium

[parmentelat]

Description

as far as I can tell this page
https://jupyterbook.org/en/stable/file-types/notebooks.html
and more specifically this section
https://jupyterbook.org/en/stable/file-types/notebooks.html#interactive-outputs
intends to show a folium map built and rendered in the jb output

however at this time it fails with the error

ValueError: Custom tiles must have an attribution.

Proposed solution

a superficial search lead me to
https://stackoverflow.com/questions/52170918/raise-value-errorcustom-files-must-have-an-attribution
which suggests an attr parameter must be passed to the map creation call

Additional notes