fix a url typo
diff --git a/_pages/cn/home.md b/_pages/cn/home.md
index 4e6d709..995d7ba 100755
--- a/_pages/cn/home.md
+++ b/_pages/cn/home.md
@@ -22,7 +22,7 @@
 <style>left_ul li{width:100%} </style>
 <ul class='left_ul'>
   <li>
-      <a href='/cn/summer2020/'>Apache ServiceComb 社区 暑假coding 2020 活动</a>
+      <a href='/cn/summer2020'>Apache ServiceComb 社区 暑假coding 2020 活动</a>
     </li>
   <li>
     <a href='/cn/release/java-chassis-downloads/'>Apache ServiceComb Java-Chassis 发布 2.0.2</a>