Add an example of how to use kind

[Gsantomaggio]

Proposed Changes

Add an example of how to use kind Kind is K8s tools for local tests and CI integrations

Types of Changes

• [ ] Bug fix (non-breaking change which fixes issue #NNNN)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause an observable behavior change in existing systems)
• [x] Documentation improvements (corrections, new content, etc)
• [ ] Cosmetic change (whitespace, formatting, etc)

Checklist

• [x] I have read the CONTRIBUTING.md document
• [x] I have signed the CA (see https://cla.pivotal.io/sign/rabbitmq)
• [ ] All tests pass locally with my changes
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have added necessary documentation (if appropriate)
• [ ] Any dependent changes have been merged and published in related repositories

Further Comments

I wanted to push this example on my personal repository, but I thought that can be useful for the community. As always, feel free to close/ignore it :) Thank you

[Gsantomaggio]

ok done!

[michaelklishin]

Thank you!