diff --git a/doc/packages/cran.zh-cn.md b/doc/packages/cran.zh-cn.md
index 2823c948..fec9a56f 100644
--- a/doc/packages/cran.zh-cn.md
+++ b/doc/packages/cran.zh-cn.md
@@ -90,4 +90,4 @@ install.packages("{package_name}")
 
 ```shell
 install.packages("testpackage")
-```
\ No newline at end of file
+```