Update README.md

12207480 · web-flow · commit 35e8713ea78c · 2020-03-03T09:10:50.000+08:00
diff --git a/README.md b/README.md
@@ -3,6 +3,8 @@ text asynchronous rendering by TextKit，for iOS.<br>
 TextKit异步渲染<br>
 you can see [weibo Demo](https://github.com/12207480/WeiboDemo).
 
+update: add truncationToken;
+
 ## CocoaPods
 ```
 pod 'TYText'
