We now directly specify the generation step in the pipeline settings. This
removes a step from the critical path which had varying runtimes. For example
in the last buildkite build I looked at it took 21s and waited 2s.
Additionally we introduce a README lightly explaining how this script fits in.
Here is the example:
That first step took 23s total (with wait time), and all it does is run our actual generation logic. This is on the critical path, so moving to this shaves of 10s of seconds on CI time.
