readme update

ymh199478 · ymh199478 · commit e4038a639c51 · 2018-09-25T10:42:17.000+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 1.2.7
+Install-Package CatLib.Core -Version 1.2.8
 ```
 
 **直接下载发布版本**
