concurrency_method step field looks to be missing

[Joseph Lisee]

Is concurrency_method step field a valid one? You can pass it to buildkite, and it is mentioned in the example here. But it's not otherwise documented and it's not in the schema itself.

[Joseph Lisee]

From talking to support I got the following information:

concurrency_method is a valid step field, though it is optional.

There are two options for the concurrency method: Ordered and Eager.

By default, the concurrency group will use the Ordered method, unless you specify eager as the concurrency_method in the step.

[Joseph Lisee]

I have attempted add this in #38

[Samuel Cochran]

Thanks! #38 is merged.