Info icon or other explanatory link/cross-link

[CodyCBakerPhD]

I love the cross-project synergy page

but I was curious about the details of how the definitions of each category and the specifics of how similarities are computed

Adding an info icon + popup or hypertext on the legend labels below leading to some documentation would be very helpful

[CodyCBakerPhD]

Perhaps the sourcedata is the "BBQS consolidated project info" internal spreadsheet?