[ENH] add brain art images

[Remi-Gau]

• [x] add brain art images to repo
• [x] rename images
• [x] add yml file with image authors, links
  • [x] fill in empty fields
• [x] optimize image size for website
• [x] add images to specific sections
• [x] create image gallery page with links and credits
• [x] add gallery to nav bar
• [ ] update footer
  • [ ] update link to gallery page

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Can be previewed here: https://remi-gau.github.io/global2021/

[vborghe]

Thanks @Remi-Gau and sorry for the extra work! 🙏

[Remi-Gau]

Thanks @Remi-Gau and sorry for the extra work! pray

hahaha in gitkraken this was 3 "right-clicks"... Soooooooooo much work!!!! How can I live like that!!!!! #DramaQueen

[Remi-Gau]

OK I will merge this in 24 hours and open issues for the non resolved issues at that point, including one to get people to help us choose which image should go as section background

[Remi-Gau]

Merging this and will open an issue to improve:

• the gallery
• the footer
• the choice of art for each section