Update README.md

Author: 385841539

README.md

@@ -12,7 +12,8 @@ CSDN:[http://blog.csdn.net/iamdingruihaha/article/details/69895266](http://blog.
 
 
 
-Download(简单的两个类：IdentityImageView，CircleImageView,最好下载下来，方便更改)
+## Download
+  (简单的两个类：IdentityImageView，CircleImageView,最好下载下来，方便更改)
 ```java
     allprojects {
 	    repositories {