[Docs] add request params

[LiqinruiG]

ChatCompletion 请求增加以下参数说明：

include_draft_logprobs: Optional[bool] = False
n: Optional[int] = 1
seed: Optional[int] = Field(default=None, ge=0, le=922337203685477580)
stop: Optional[Union[str, List[str]]] = Field(default_factory=list)
stop_token_ids: Optional[List[int]] = Field(default_factory=list)
logits_processors_args: Optional[Dict] = None
mm_hashes: Optional[list] = None

Completion请求增加以下参数说明：

echo: Optional[bool] = False
n: Optional[int] = 1
seed: Optional[int] = Field(default=None, ge=0, le=922337203685477580)
stop: Optional[Union[str, List[str]]] = Field(default_factory=list)
stream: Optional[bool] = False
stream_options: Optional[StreamOptions] = None
temperature: Optional[float] = None
top_p: Optional[float] = None
response_format: Optional[AnyResponseFormat] = None
user: Optional[str] = None
stop_token_ids: Optional[List[int]] = Field(default_factory=list)
temp_scaled_logprobs: Optional[bool] = False
top_p_normalized_logprobs: Optional[bool] = False
include_draft_logprobs: Optional[bool] = False
logits_processors_args: Optional[Dict] = None
mm_hashes: Optional[list] = None

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[codecov-commenter]

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