Merge pull request #186 from appotry/master

修正编译报错

README.md

@@ -32,6 +32,7 @@ CppJieba是"结巴(Jieba)"中文分词的C++版本
 ```sh
 git clone --depth=10 --branch=master git://github.com/yanyiwu/cppjieba.git
 cd cppjieba
+git submodule init && git submodule update
 mkdir build
 cd build
 cmake ..