XTuner Release V0.2.0

What's Changed

• Add Support for Pre-trained RM by @RowitZou in #1038
• Fix a bug when import reward model client. by @RowitZou in #1039
• bump version to v0.2.0 by @pppppM in #1040

New Contributors

• @RowitZou made their first contribution in #1038

Full Changelog: v0.2.0rc0...v0.2.0