Update 11.md

docs/1.7/11.md

 # PyTorch：定义新的 Autograd 函数
 
 > 原文：<https://pytorch.org/tutorials/beginner/examples_autograd/polynomial_custom_function.html#sphx-glr-beginner-examples-autograd-polynomial-custom-function-py>
+>
+> 校对：DrDavidS
 
 这里我们准备一个三阶多项式，通过最小化平方欧几里得距离来训练，并预测函数 `y = sin(x)` 在`-pi`到`pi`上的值。
 
@@ -101,5 +103,3 @@ print(f'Result: y = {a.item()} + {b.item()} * P3({c.item()} + {d.item()} x)')
 [下载 Python 源码：`polynomial_custom_function.py`](https://pytorch.org/tutorials/_downloads/b7ec15fd7bec1ca3f921104cfb6a54ed/polynomial_custom_function.py)
 
 [下载 Jupyter 笔记本：`polynomial_custom_function.ipynb`](https://pytorch.org/tutorials/_downloads/0a64809624bf2f3eb497d30d5303a9a0/polynomial_custom_function.ipynb)
-
-校对：DrDavidS
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