[DOC] Add Distroless support Documentation

[amanycodes]

What kind of documentation improvement is needed?

Missing information or guidance

What is the change that is needed?

Since we support distroless images, it would be great to have a Distroless images support section in the features as right now the Copa docs don't have any section mentioning for the same.

Are you willing to submit PRs to contribute to documentation?

• Yes, I am willing to implement it.

[devc007]

/assign