diff --git a/posts/markdown-examples.md b/posts/markdown-examples.md
index 3ee50a5..77befab 100644
--- a/posts/markdown-examples.md
+++ b/posts/markdown-examples.md
@@ -5,8 +5,7 @@ color: ""
 impression: ""
 categories:
 tags:
-date: time
-
+date: 2007-08-31T00:00:00Z
 ---
 
 # 语法高亮
diff --git a/public/assets/images/avatar_transparent.png b/public/assets/images/avatar_transparent.png
new file mode 100644
index 0000000..de1c4e6
Binary files /dev/null and b/public/assets/images/avatar_transparent.png differ