canary documentation

[rouzwelt]

Motivation

resolves rainlanguage/arb-bot#199

Solution

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• made this PR as small as possible
• unit-tested any new functionality
• linked any relevant issues or PRs

[thedavidmeister]

i don't really understand why this doc is here, in the root of the ob repo

or who it is for?

@rouzwelt originally i asked you to setup a canary, which is already documented in the strat in pubstrats in basically paraphrasing exactly what is here

# The canary order does nothing except run on a cooldown.
#
# It is useful only to show that orders clear on some network. If the canary is
# deployed and does not run, it means that there are no solvers monitoring the
# network, or at least not the raindex contract that the canary is deployed on.
#
# The canary is basically a stripped back version of the sampler. It runs but
# doesn't sample anything.

i'd expect to see docs that explain what was missing in your understanding when i asked you about it @rouzwelt and probably somewhere related to the infra they are for

[dcatki]

@rouzwelt whats the status of this?