Update README.md

Author: JessYanCoding

README-zh.md

@@ -23,6 +23,7 @@
 * 自动管理监听器,少去了手动注销监听器的烦恼.
 * 默认运行在主线层,少去了切换线程的烦恼.
 * 多平台支持,支持 **Okhttp** , **Retrofit** , **Glide**.
+* 轻量级框架,不包含任何三方库,体积极小.
 
 ## Download
 ``` gradle

README.md

@@ -21,6 +21,7 @@
 * Automatic management of the listener, less to manually cancel the trouble of the listener.
 * The default run in the main line layer, less to switch the thread of trouble.
 * Multi-platform support, support **Okhttp**, **Retrofit**, **Glide**.
+* Lightweight framework, does not contain any three-party library, very small size.
 
 ## Download
 ``` gradle