📜 update README

🆙 bump dependencies

🧹 shorten & clean tests

📁 add docs & workflows

⚡ improve sortB(), with benchmark

🆙 bump sixb

improve docs

silence race detector on read access to goroutine counter

'go test -race -timeout 2h' is now clean
Fixes #4

lesswap: pivot: add minmax distance sampling

update readme