diff --git a/docs/编程入门/CS110L.en.md b/docs/编程入门/CS110L.en.md
index e239cd34..ecb4106a 100644
--- a/docs/编程入门/CS110L.en.md
+++ b/docs/编程入门/CS110L.en.md
@@ -25,6 +25,6 @@ Personally, I find the concept of "futures" in Rust fascinating and elegant, and
 
 ## Personal Resources
 
-All the resources and assignments used by @PKUFlyingPig in this course are maintained in [PKUFlyingPig/CS110L - GitHub](https://github.com/PKUFlyingPig/CS110L)
+All the resources and assignments used by @PKUFlyingPig in this course are maintained in [PKUFlyingPig/CS110L - GitHub](https://github.com/PKUFlyingPig/CS110L).
 
 Due to the rapid evolution of Rust, the libraries used in the 2020 version of the course project are obsolete, so [@fung-hwang](https://github.com/fung-hwang) tried to adapt these libraries (in November 2022). His adaptation advice and completed assignments are maintained in [fung-hwang/CS110L-2020spr - GitHub](https://github.com/fung-hwang/CS110L-2020spr). It is possible that Rust and these libraries will have changed again when you start to learn CS110L, but you can still refer to this repo for help.