lib/group: Add README
Created by: indradhanush
I was looking at this package and thought that we should preserve this in the package's README
.
Better viewed as the rich diff.
Copied (with some semantic edits) from the PR description that introduced this package - https://github.com/sourcegraph/sourcegraph/pull/37981
I'm not the author you're looking for.
Co-authored-by: Camden Cheek [email protected]
Test plan
Docs only.