readme update

ymh199478 · ymh199478 · commit 6b876026bbef · 2018-02-13T14:52:08.000+08:00
diff --git a/README.md b/README.md
@@ -28,7 +28,7 @@
 **使用Nuget安装**
 
 ```PM
-Install-Package CatLib.Core -Version 1.2.1
+Install-Package CatLib.Core -Version 1.2.2
 ```
 
 **直接下载发布版本**
