docs(pack): refer to inline charmcraft.yaml metadata in pack help
Metadata
Current evaluation
No evaluation has been recorded for this issue yet.
Issue body
The `pack --help` overview instructs users to ensure a valid `metadata.yaml` exists. That is the legacy split-file format; modern charms put metadata inline in `charmcraft.yaml`, so the stale guidance sends readers looking for a file that should not exist.
---
- [x] I've followed the [contribution guidelines](https://github.com/canonical/charmcraft/blob/main/CONTRIBUTING.md).
- [x] I've signed the [CLA](http://www.ubuntu.com/legal/contributors/).
- [x] I've successfully run `make lint && make test`.
- [x] I've added or updated any relevant documentation.
- [x] In documents I changed, I [added a meta description](https://canonical-starflow.readthedocs-hosted.com/how-to/add-a-page-meta-description/) if one was missing.
- [x] I've updated the relevant release notes.
Evaluation history
No evaluation history available.