Make the brainbox documentation better and nicer :D

[katjaq]

• build a comprehensive written doc for brainbox.pasteur.fr
• add examples?
• add pictures

and anything that you may find helpful to
and feel invited to edit the text wherever needed 😃

many thanks!

[AnuragSharma5893]

Hey, can you please tell the context for the writing and then assign me that project.