# Description

Added additional checks for subtask annotations in mimic's
`annotate_demos.py` to make sure the exported demos are all with the
valid annotations required for running data generation in mimic.

Add script to merge HDF5 files into one dataset. Enables users to merge
together files after running annotate_demos.

## Type of change

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applicable. -->

- Bug fix (non-breaking change which fixes an issue)
- New feature

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [ ] 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
- [ ] 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: Peter Du <peterd@nvidia.com>