Merge branch '4.0' of https://gitee.com/yubaolee/OpenAuth.Net into 4.0

OpenAuth.App/RoleApp.cs

@@ -39,7 +39,7 @@ namespace OpenAuth.App
 
 
             var roleViews = new List<RoleView>();
-            foreach (var role in roles)
+            foreach (var role in roles.ToList())
             {
                 RoleView uv = role;
                 var orgs = LoadByRole(role.Id);

OpenAuth.App/UserManagerApp.cs

@@ -44,7 +44,7 @@ namespace OpenAuth.App
 
 
             var userviews = new List<UserView>();
-            foreach (var user in users)
+            foreach (var user in users.ToList())
             {
                 UserView uv = user;
                 var orgs = LoadByUser(user.Id);

README.md

@@ -1,3 +1,11 @@
+## 重磅推荐：
+
+全新.net core 2.1正式提交，喜欢的同学快快star吧：
+
+**GitHub** https://github.com/yubaolee/OpenAuth.Core
+
+**码云**  https://gitee.com/yubaolee/OpenAuth.Core
+
 ![LOGO](https://gitee.com/uploads/images/2018/0425/163228_7077c3fd_362401.png "1.png")
 
 **logo图标含义** OpenAuth中OA字母的结合体；整体像鱼，授人以渔；你非说像咸鱼，那也是积极向上的咸鱼；中心是个笑脸，微笑面对生活(✿◡‿◡)。