I know the README is WIP re: comment at the bottom, but here is some inspiration for things we can do when it's being rewritten:

• Compare help output from Cobra to Serpent. If we had screenshots side-by-side, that would be very helpful. As I recall, this was one of the primary drivers for creation.
• Add a "Migrating" section. Assumingly, we want people to migrate their CLI from Cobra if they'd gain the benefits. I think(?) we did this incrementally, but I may be incorrect.
• A logo would be nice for some flashiness. I'm happy to create one when the time arises.
• Explicitly state that this replaces Cobra and Viper. Viper was created to solve the lack of an environment and YAML config, but in our experience, it falls short.
• More examples. It might be worth pointing directly to coder/coder for an example, since that CLI is massive.