Add improved developer experience and docs

[BobyMCbobs]

• add modern improved development docs
• tidy development files

fixes: #157

[heyste]

Thanks for the updates to the docs. As discussed there needs to be enough context so that others like @iiamabby can both know the why and the how.

[BobyMCbobs]

Thanks for the updates to the docs. As discussed there needs to be enough context so that others like @iiamabby can both know the why and the how.

@heyste, absolutely! This will be helpful going forward.
Please verify that, either yourself and/or @iiamabby, can bring up the bot with following the docs.

[BobyMCbobs]

The documentation works for both @heyste and @iiamabby.
cncf-infra/k8s-conformance#62 (comment)
cncf-infra/k8s-conformance#62 (comment)
Merging.