docs: 更新 lighter-python-main 文档，添加示例代码和 API 说明，重构部分内容以提高可读性

docs/lighter/lighter-python-main/docs/OrderBook.md

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+# OrderBook
+
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**symbol** | **str** |  | 
+**market_id** | **int** |  | 
+**status** | **str** |  | 
+**taker_fee** | **str** |  | 
+**maker_fee** | **str** |  | 
+**liquidation_fee** | **str** |  | 
+**min_base_amount** | **str** |  | 
+**min_quote_amount** | **str** |  | 
+**supported_size_decimals** | **int** |  | 
+**supported_price_decimals** | **int** |  | 
+**supported_quote_decimals** | **int** |  | 
+
+## Example
+
+```python
+from lighter.models.order_book import OrderBook
+
+# TODO update the JSON string below
+json = "{}"
+# create an instance of OrderBook from a JSON string
+order_book_instance = OrderBook.from_json(json)
+# print the JSON string representation of the object
+print(OrderBook.to_json())
+
+# convert the object into a dict
+order_book_dict = order_book_instance.to_dict()
+# create an instance of OrderBook from a dict
+order_book_from_dict = OrderBook.from_dict(order_book_dict)
+```
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+
+