update readme

README.md

@@ -89,7 +89,7 @@ Dive into Deep Learning with PyTorch.
 [由于这段时间我刚好会用到NLP，所以先更NLP，CV回头再更]
 
 ### 10. 自然语言处理
-[10.1 词嵌入（word2vec）](https://github.com/ShusenTang/Dive-into-DL-PyTorch/blob/master/docs/chapter10_natural-language-processing/10.1_word2vec.md)
+[10.1 词嵌入（word2vec）](https://github.com/ShusenTang/Dive-into-DL-PyTorch/blob/master/docs/chapter10_natural-language-processing/10.1_word2vec.md)      
 [10.2 近似训练](https://github.com/ShusenTang/Dive-into-DL-PyTorch/blob/master/docs/chapter10_natural-language-processing/10.2_approx-training.md)