Document how rockset works with the bencharmk dashboards: inductor.torch_dynamo_perf_stats table

[CliveUnger]

I am curious about the queries for this page: https://hud.pytorch.org/benchmark/compilers that are stored in https://github.com/pytorch/test-infra/tree/main/torchci/rockset/inductor . How is the data in the inductor.torch_dynamo_perf_stats collection populated? It is not mentioned in the architecture docs: https://github.com/pytorch/test-infra/blob/main/torchci/docs/architecture.md

[ZainRizvi]

Hi, turning this into a task to better document the usage here.