XTuner Release V0.1.2

What's Changed

• [Doc] Fix dataset docs by @HIT-cwh in #87
• [Doc] Fix readme by @HIT-cwh in #92
• [Improve] Add ZeRO2-offload configs by @LZHgrla in #94
• [Improve] Redesign convert tools by @LZHgrla in #96
• [Fix] fix generation config by @HIT-cwh in #98
• [Feature] Support Baichuan2 models by @LZHgrla in #102
• bump version to 0.1.2 by @LZHgrla in #100

Full Changelog: v0.1.1...v0.1.2