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/PnLEntry.md

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+# PnLEntry
+
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**timestamp** | **int** |  | 
+**trade_pnl** | **float** |  | 
+**inflow** | **float** |  | 
+**outflow** | **float** |  | 
+**pool_pnl** | **float** |  | 
+**pool_inflow** | **float** |  | 
+**pool_outflow** | **float** |  | 
+**pool_total_shares** | **float** |  | 
+
+## Example
+
+```python
+from lighter.models.pn_l_entry import PnLEntry
+
+# TODO update the JSON string below
+json = "{}"
+# create an instance of PnLEntry from a JSON string
+pn_l_entry_instance = PnLEntry.from_json(json)
+# print the JSON string representation of the object
+print(PnLEntry.to_json())
+
+# convert the object into a dict
+pn_l_entry_dict = pn_l_entry_instance.to_dict()
+# create an instance of PnLEntry from a dict
+pn_l_entry_from_dict = PnLEntry.from_dict(pn_l_entry_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)
+
+