v0.2.8
[zero] Refactor ZeroContextConfig class using dataclass (#3186)
[gemini] add GeminiMemoryManger (#832)
Fix docstr for zero statedict (#3185)
[doc] add deepspeed citation and copyright (#2996)
[NFC] polish colossalai/zero/sharded_param/__init__.py code style (#1717)
[ddp] add is_ddp_ignored (#2434)
[Gemini] add GeminiAdamOptimizer (#1960)