[enhancement] traverse directory to produce json

[renxida]

Suppose i have

./thing_one/params.json
./thing_one/results.json
./thing_two/params.json
./thing_two/results.json

Could we make something like jj -p -r . hat traverses ./ to fetch all the json, and display them as a big json with proper formatting and indentation? So it would produce something like:
{
"thing_one": {
"params: { },
"results": { }
},
"thing_two": {
........
}
}

BTW, awesome utility. Absolutely love it. It's been making my life so much easier.