Docs: Introduction to creating a PR to topolvm

[guettli]

What should the feature do:

I would like to see some documentation, about how to create a PR for topolvm.

Other projects use tools like Tilt.

How do you develop the Go code. I run make multi-platform-image-normal which takes ~60 seconds even if no code was changed.

I guess you use some other workflow to modify the source code (and test it in a cluster).

What is use case behind this feature:

I want to enhance topolvm.

[llamerada-jp]

There is a contribution guide, but it may be out of date. If you try it and find anything wrong, I would be happy to have it pointed out.
https://github.com/topolvm/topolvm/blob/main/CONTRIBUTING.md

We have tried to introduce tilt before and it was abandoned. It may be helpful to you.
#405
#434

[guettli]

@llamerada-jp thank you for your reply. I have seen that topolvm has many envTests. I like that! This way I can test my code easily, and I don't need to build a container and upload it into a cluster often.

For me Tilt is handy, when I need to develop something in a running dev cluster (for example bare-metal).

Because of the good test coverage, Tilt is not needed for me here. The contribution page is all I need.

Thank you for your reply.