Update README.md

Author: FlodCoding

README.md

@@ -91,22 +91,8 @@ loadingBtn.setEnableShrink(true)
 ```
 
 ### 状态回调
-
-```
-graph LR
-start --> onShrinking
-onShrinking --> onLoadingStart
-
-complete --> onLoadingStop
-onLoadingStop --> onEndDrawableAppear
-onEndDrawableAppear --> onCompleted
-onCompleted --> onRestored
-onRestored
-
-```
-
-
-
+start --> onShrinking --> onLoadingStart
+complete --> onLoadingStop --> onEndDrawableAppear --> onCompleted --> onRestored
 
 ```
     public static class OnStatusChangedListener {
@@ -170,4 +156,4 @@ setOnStatusChangedListener<br>(OnStatusChangedListener listener)|-|null|按钮
 
 ### [Matisse](https://github.com/zhihu/Matisse)
 
-### [Glide](https://github.com/bumptech/glide)
+### [Glide](https://github.com/bumptech/glide)