diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 813a30d..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/README.md b/README.md
index bbd1820..32820f1 100644
--- a/README.md
+++ b/README.md
@@ -27,4 +27,4 @@
 
 [一张图掌握CSS Selector](https://www.bilibili.com/video/BV1kk4y1R78f)
 
-[一张图掌握CSS Selector](https://www.bilibili.com/video/BV1ui4y1b7UW/)
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+[一张图掌握Head标签](https://www.bilibili.com/video/BV1ui4y1b7UW/)
\ No newline at end of file