Вынес файл Repository.cs в папку Repositories

MyCities/Controllers/HomeController.cs

 using Microsoft.AspNetCore.Mvc;
 using MyCities.Models;
+using MyCities.Repositories;
 
 namespace MyCities.Controllers
 {
     public class HomeController : Controller
     {
-        private IRepository _repository;
+        private ICityRepository _cityRepository;
 
-        public HomeController(IRepository repository)
+        public HomeController(ICityRepository cityRepository)
         {
-            _repository = repository;
+            _cityRepository = cityRepository;
         }
 
         public IActionResult Index()
         {
-            return View(_repository.Cities);
+            return View(_cityRepository.Cities);
         }
 
         [HttpGet]
@@ -26,7 +27,7 @@ namespace MyCities.Controllers
         [HttpPost]
         public IActionResult Create(City city)
         {
-            _repository.Add(city);
+            _cityRepository.Add(city);
             return RedirectToAction("Index");
         }
     }

MyCities/Controllers/PersonController.cs

+using Microsoft.AspNetCore.Mvc;
+
+namespace MyCities.Controllers
+{
+    public class PersonController : Controller
+    {
+
+
+        // GET
+        public IActionResult Index()
+        {
+            return View();
+        }
+    }
+}

MyCities/Models/Person.cs

+namespace MyCities.Models
+{
+    public class Person
+    {
+        public string FullName { get; set; }
+        public string NickName { get; set; }
+        public string AvatarImagePath { get; set; }
+    }
+}

MyCities/Repositories/ICityRepository.cs

+using System.Collections.Generic;
+using MyCities.Models;
+
+namespace MyCities.Repositories
+{
+    public interface ICityRepository
+    {
+        List<City> Cities { get; }
+        void Add(City city);
+    }
+
+}

MyCities/Models/Repository.cs → MyCities/Repositories/InMemoryCityRepository.cs

 using System.Collections.Generic;
+using MyCities.Models;
 
-namespace MyCities.Models
+namespace MyCities.Repositories
 {
-    public interface IRepository
-    {
-        List<City> Cities { get; }
-        void Add(City city);
-    }
-
-    public class InMemoryRepository : IRepository
+    public class InMemoryCityRepository : ICityRepository
     {
         private List<City> _cities = new List<City>
         {

MyCities/Startup.cs

@@ -10,6 +10,7 @@ using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using MyCities.Models;
+using MyCities.Repositories;
 
 namespace MyCities
 {
@@ -32,7 +33,7 @@ namespace MyCities
                 options.MinimumSameSitePolicy = SameSiteMode.None;
             });
 
-            services.AddSingleton<IRepository, InMemoryRepository>();
+            services.AddSingleton<ICityRepository, InMemoryCityRepository>();
             services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
         }
 

MyCities/Views/Person/Index.cshtml

+@model IEnumerable<MyCities.Models.City>
+
+@{ Layout = "_Layout";}
+
+<table class="table small table-bordered">
+    <thead>
+    <tr>
+        <th>Name</th>
+        <th>Counry</th>
+        <th>Population</th>
+    </tr>
+    </thead>
+    <tbody>
+    @foreach (var city in Model)
+    {
+        <tr>
+            <td>@city.Name</td>
+            <td>@city.Country</td>
+            <td>@city.Population.ToString("#,###")</td>
+        </tr>
+    }
+    </tbody>
+</table>
+
+<a href="/Home/Create" class="btn btn-primary">Create city</a>