Update README.md and the Mvc.Server sample to use the new Entity Framework context registration syntax

README.md

@@ -64,10 +64,8 @@ To use OpenIddict, you need to:
 public void ConfigureServices(IServiceCollection services) {
     services.AddMvc();
 
-    services.AddEntityFramework()
-        .AddSqlServer()
-        .AddDbContext<ApplicationDbContext>(options =>
-            options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));
+    services.AddDbContext<ApplicationDbContext>(options =>
+        options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));       
 
     // Register the Identity services.
 	services.AddIdentity<ApplicationUser, IdentityRole>()

samples/Mvc.Server/Startup.cs

@@ -4,7 +4,6 @@ using CryptoHelper;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Mvc.Server.Models;
@@ -24,10 +23,8 @@ namespace Mvc.Server {
 
             services.AddSession();
 
-            services.AddEntityFramework()
-                .AddEntityFrameworkSqlServer()
-                .AddDbContext<ApplicationDbContext>(options =>
-                    options.UseSqlServer(configuration["Data:DefaultConnection:ConnectionString"]));
+            services.AddDbContext<ApplicationDbContext>(options =>
+                options.UseSqlServer(configuration["Data:DefaultConnection:ConnectionString"]));
 
             // Register the Identity services.
             services.AddIdentity<ApplicationUser, IdentityRole<Guid>>()