diff --git a/assets/wechat.jpg b/assets/wechat.jpg
index ebfab649e..366370a60 100644
Binary files a/assets/wechat.jpg and b/assets/wechat.jpg differ
diff --git a/docs/sidebars.js b/docs/sidebars.js
index e95be6d20..561bc8f76 100755
--- a/docs/sidebars.js
+++ b/docs/sidebars.js
@@ -186,7 +186,7 @@ const sidebars = {
                   id: "awel/awel_tutorial/advanced_guide/4.1_lifecycle"
                 }
               ]
-            },,
+            },
             {
               type: "category",
               label: "5. AWEL Template",