Is the “Description” section at the top not sufficient?
“Description
Using a bunch of analog crosspoint switches wired together into one bigger switch, Jumperless makes real, fully analog hardware connections between any points on the board or the Arduino Nano header at the top via serial, instead of needing to use jumper wires.”
Admittedly, the HackADay layout is pretty atrocious, and at east on an iPhone, the description is several pages down, after the picture gallery and a bunch of empty white space. Nonetheless, the “description” section is at the very top of the main textual content of the page.
Not much the project creator can do to fix HackADay’s bad layout, sadly.
I find that GitHub looks way nicer than Hackaday on mobile.