Pairing frequency heatmap

[ryanjwessel]

Color code the pairing counts by min/max to highlight knowledge silos on the team.

Credit to @andersonvom for this great idea!

[ryanjwessel]

To add to this, we could use a library like simpleheat to generate a canvas heatmap based on the pairing data, and write it to an HTML file.

AFAIK, color coding a Markdown table is not possible without CSS, and GitHub does not allow that.

This feels like it would be better suited for a separate command, like npx pear heatmap.