Merge pull request #33 from mYcc-one/low_rank

low_rank_add

Author: ironartisan

docs/ch03/ch03.md

@@ -193,7 +193,7 @@ $$
   $$
   其中 $h_{ii}$ 是对应的Hessian矩阵的对角元素，定义为：
   $$
-   h_{i i}=\frac{\partial^2 L}{\partial w_i^2}
+  h_{i i}=\frac{\partial^2 L}{\partial w_i^2}
   $$
 
 - **剪枝原则**：
@@ -284,3 +284,4 @@ $$
 ## 引用资料
 
 - [Learning Efficient Convolutional Networks through Network Slimming](https://arxiv.org/abs/1708.06519)
+