README is misleading concerning sample rates

[Evertras]

Hey there, Brubeck is pretty awesome! But for a while now we've been under the assumption that it didn't do anything with sample rates due to this line in the readme:

Client-sent sampling rates are ignored.

But after digging in the code to check something else, I noticed sample rates are supported when I send something like test:1|c|@0.1 and get a value of 10 on flush. Is this line in the README outdated or does it mean something else?

[vmg]

You're right! We've actually implemented that feature but forgot to update the README. :sweat:

I'll open a PR tomorrow morning. :)