Update Tips-and-Tricks.md

TyxDal · Jul 27, 2015 · dea4e81 · dea4e81
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commit dea4e81
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diff --git a/md/Learn-Basics/Tips-and-Tricks.md b/md/Learn-Basics/Tips-and-Tricks.md
@@ -180,6 +180,7 @@ DevTools打开时,调用 `console.profile()` JavaScript CPU的分析。`console.
 
 ![dom and styles](https://developer.chrome.com/devtools/docs/tips-and-tricks/preview_elements.png)
 
+##Timeline