Graph in README?

[znd4]

Would it be useful to present the benchmarks with a graph instead of / in addition to the table? (graphs are pretty + easier to read)

Assuming that the current table is built + inserted into the README as part of some CI/CD process, I could try to put together a PR that also tacks on a matplotlib plot

[hugovk]

The CI doesn't update the benchmarks in the README, they were last updated in #395.

But the benchmarks are run on the CI, so that's certainly an option!

PR welcome! As a first step, it could be a script to update it manually.