# Description

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This PR adds a new ManagerBasedRLEnv for a three cube stacking task with
a Franka arm.

Docs updated to add new environment type and env tested with
test_environments.py script.

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## Type of change

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- New feature (non-breaking change which adds functionality)
- This change requires a documentation update

## Screenshots

![franka_stack](https://github.com/user-attachments/assets/2f14059c-1117-44f1-87db-c6b5aaab2a11)


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## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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---------
Co-authored-by: Kelly Guo <kellyg@nvidia.com>