fix typo (PyTroch -> PyTorch) (PaddlePaddle/Paddle#44042)

docs/guides/model_convert/pytorch_api_mapping_cn.md

@@ -178,13 +178,13 @@ X2Paddle致力于帮助其它主流深度学习框架开发者快速迁移至飞
 
 | 序号 | PyTorch API                                                  | PaddlePaddle API                                             | 备注                                                         |
 | ---- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------------------------------------------------------ |
-| 1    | [torch.nn.L1Loss](https://pytorch.org/docs/stable/generated/torch.nn.L1Loss.html?highlight=l1loss#torch.nn.L1Loss) | [paddle.nn.L1Loss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/loss/L1Loss_cn.html#l1loss) | 功能一致，PyTroch存在废弃参数`size_average`和`reduce`。      |
-| 2    | [torch.nn.MSELoss](https://pytorch.org/docs/stable/generated/torch.nn.MSELoss.html?highlight=mseloss#torch.nn.MSELoss) | [paddle.nn.MSELoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/MSELoss_cn.html#mseloss) | 功能一致，PyTroch存在废弃参数`size_average`和`reduce`。      |
+| 1    | [torch.nn.L1Loss](https://pytorch.org/docs/stable/generated/torch.nn.L1Loss.html?highlight=l1loss#torch.nn.L1Loss) | [paddle.nn.L1Loss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/loss/L1Loss_cn.html#l1loss) | 功能一致，PyTorch存在废弃参数`size_average`和`reduce`。      |
+| 2    | [torch.nn.MSELoss](https://pytorch.org/docs/stable/generated/torch.nn.MSELoss.html?highlight=mseloss#torch.nn.MSELoss) | [paddle.nn.MSELoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/MSELoss_cn.html#mseloss) | 功能一致，PyTorch存在废弃参数`size_average`和`reduce`。      |
 | 3    | [torch.nn.CrossEntropyLoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/layer/loss/CrossEntropyLoss_cn.html#crossentropyloss) | [paddle.nn.CrossEntropyLoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/CrossEntropyLoss_cn.html#crossentropyloss) | [差异对比](https://github.com/PaddlePaddle/X2Paddle/tree/develop/docs/pytorch_project_convertor/API_docs/loss/torch.nn.CrossEntropyLoss.md)                |
 | 4    | [torch.nn.KLDivLoss](https://pytorch.org/docs/stable/generated/torch.nn.KLDivLoss.html?highlight=kldivloss#torch.nn.KLDivLoss) | [paddle.nn.KLDivLoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/KLDivLoss_cn.html#kldivloss) | [差异对比](https://github.com/PaddlePaddle/X2Paddle/tree/develop/docs/pytorch_project_convertor/API_docs/loss/torch.nn.KLDivLoss.md)                       |
-| 5    | [torch.nn.BCELoss](https://pytorch.org/docs/stable/generated/torch.nn.BCELoss.html?highlight=bceloss#torch.nn.BCELoss) | [paddle.nn.BCELoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/BCELoss_cn.html#bceloss) | 功能一致，PyTroch存在废弃参数`size_average`和`reduce`。      |
-| 6    | [torch.nn.BCEWithLogitsLoss](https://pytorch.org/docs/stable/generated/torch.nn.BCEWithLogitsLoss.html?highlight=bcewithlogitsloss#torch.nn.BCEWithLogitsLoss) | [paddle.nn.BCEWithLogitsLoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/BCEWithLogitsLoss_cn.html#bcewithlogitsloss) | 功能一致，PyTroch存在废弃参数`size_average`和`reduce`。      |
-| 7    | [torch.nn.SmoothL1Loss](https://pytorch.org/docs/stable/generated/torch.nn.SmoothL1Loss.html?highlight=torch%20nn%20smoothl1loss#torch.nn.SmoothL1Loss) | [paddle.nn.SmoothL1Loss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/SmoothL1Loss_cn.html#smoothl1loss) | 功能一致，参数名不一致，PyTroch存在废弃参数`size_average`和`reduce`。 |
+| 5    | [torch.nn.BCELoss](https://pytorch.org/docs/stable/generated/torch.nn.BCELoss.html?highlight=bceloss#torch.nn.BCELoss) | [paddle.nn.BCELoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/BCELoss_cn.html#bceloss) | 功能一致，PyTorch存在废弃参数`size_average`和`reduce`。      |
+| 6    | [torch.nn.BCEWithLogitsLoss](https://pytorch.org/docs/stable/generated/torch.nn.BCEWithLogitsLoss.html?highlight=bcewithlogitsloss#torch.nn.BCEWithLogitsLoss) | [paddle.nn.BCEWithLogitsLoss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/BCEWithLogitsLoss_cn.html#bcewithlogitsloss) | 功能一致，PyTorch存在废弃参数`size_average`和`reduce`。      |
+| 7    | [torch.nn.SmoothL1Loss](https://pytorch.org/docs/stable/generated/torch.nn.SmoothL1Loss.html?highlight=torch%20nn%20smoothl1loss#torch.nn.SmoothL1Loss) | [paddle.nn.SmoothL1Loss](https://www.paddlepaddle.org.cn/documentation/docs/zh/api/paddle/nn/SmoothL1Loss_cn.html#smoothl1loss) | 功能一致，参数名不一致，PyTorch存在废弃参数`size_average`和`reduce`。 |
 
 
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