Add example usage with cirrus CI

[sagiegurari]

Adding documentation example of a working CI build using cirrus-ci.org (.cirrus.yml)

[mtmn]

Hi, do you think this issue is still needed? In case it is, I would love to help. :)

[fkorotkov]

Cirrus config should look like:

container:
  image: rust:latest

task:
  name: ci-flow
  install_script: cargo install --debug cargo-make
  make_script: cargo make ci-flow

It will be also great to add a caching instruction like in Rust example but I don't have enough knowledge to see what can work as a fingerprint_script for cargo-make.

[sagiegurari]

that's great!
Can any of you please create a PR for it?
readme content goes to the content.md and nav.md and from that i generate the readme.md

so just add another section there with all info.

[sagiegurari]

@mtmn I mentioned you as well in the official changelog and releases page :)
thanks both for the help.