Inconsistent docs for use_compute_credits

[asomers]

The online docs at https://cirrus-ci.org/pricing/#configuring-compute-credits say that compute credits may be used with any of the following instance types: container, windows_container and macos_instance. Notably absent are freebsd_instance and compute_engine_instance. Yet the https://cirrus-ci.org/pricing/#compute-credits section says how many minutes of FreeBSD time one compute credit can buy, and the https://cirrus-ci.org/pricing/#pricing section says you can use compute credits "for Linux, FreeBSD, Windows, and macOS workloads."

These three sections are not consistent with each other. Should the #configuring-compute-credits section be updated to include freebsd_instance and compute_engine_instance as well?

[maflcko]

I guess this could just be updated to say "any instance managed by us" with a link to https://cirrus-ci.org/features/ ?