# Description

This PR provides a PBT builtin training example for
Isaac-Dexsuite-Kuka-Allegro-Lift-v0 environment.

Though we had introduction and explanation for how to run PBT, We didn't
have an builtin example.
This will make using PBT easier for user.

Fixes # (issue)

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## Type of change

- New feature (non-breaking change which adds functionality)

## Screenshots

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## Checklist

- [x] I have read and understood the [contribution
guidelines](https://isaac-sim.github.io/IsaacLab/main/source/refs/contributing.html)
- [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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