Update DevExtreme Mvc blog post

Author: m-aliozkaya

blog-posts/en/using-asp.net-zero-with-devextreme-angular-part-2.md

@@ -49,7 +49,7 @@ configuration.CreateMap<Person, PersonListDto>();
 //configuration.CreateMap<Phone, PhoneInPersonListDto>();
 ```
 
-After defining interface, we can implement it as shown below: (in **.Application** project)
+After defining interface, we can implement it as shown below: (in `.Application` project)
 
 ```csharp
 public class PersonAppService : PhoneBookDemoAppServiceBase, IPersonAppService
@@ -98,34 +98,24 @@ By writing unit test, we can test `GetPeople` method of `PersonAppService` witho
 
 Since we disabled multitenancy, we should disable it for unit tests too. Open `PhoneBookDemoConsts` class in the `Acme.PhoneBook.Core` project and set `MultiTenancyEnabled` to false. After a rebuild and run unit tests, you will see that some tests are skipped (those are related to multitenancy).
 
-Let's create first test to verify getting people without any filter:
-
 ```csharp
-using Acme.PhoneBookDemo.People;
-using Acme.PhoneBookDemo.People.Dtos;
-using Shouldly;
-using Xunit;
-
-namespace Acme.PhoneBookDemo.Tests.People
+public class PersonAppService_Tests : AppTestBase
 {
-    public class PersonAppService_Tests : AppTestBase
-    {
-        private readonly IPersonAppService _personAppService;
+    private readonly IPersonAppService _personAppService;
 
-        public PersonAppService_Tests()
-        {
-            _personAppService = Resolve<IPersonAppService>();
-        }
+    public PersonAppService_Tests()
+    {
+        _personAppService = Resolve<IPersonAppService>();
+    }
 
-        [Fact]
-        public void Should_Get_All_People_Without_Any_Filter()
-        {
-            //Act
-            var persons = _personAppService.GetPeople(new GetPeopleInput());
+    [Fact]
+    public void Should_Get_All_People_Without_Any_Filter()
+    {
+        //Act
+        var persons = _personAppService.GetPeople(new GetPeopleInput());
 
-            //Assert
-            persons.Items.Count.ShouldBe(2);
-        }
+        //Assert
+        persons.Items.Count.ShouldBe(2);
     }
 }
 ```

blog-posts/en/using-asp.net-zero-with-devextreme-angular-part-3.md

@@ -84,15 +84,7 @@ public async Task Should_Create_Person_With_Valid_Arguments()
 }
 ```
 
-Test method also written using **async/await** pattern since calling
-method is async. We called `CreatePerson` method, then checked if given
-person is in the database. `UsingDbContext` method is a helper method
-of `AppTestBase` class (which we inherited this unit test class from).
-It's used to easily get a reference to `DbContext` and use it directly to
-perform database operations.
-
-This method successfully works since all required fields are supplied.
-Let's try to create a test for **invalid arguments**:
+Test method also written using **async/await** pattern since calling method is async. We called `CreatePerson` method, then checked if given person is in the database. `UsingDbContext` method is a helper method of `AppTestBase` class (which we inherited this unit test class from). It's used to easily get a reference to `DbContext` and use it directly to perform database operations. This method successfully works since all required fields are supplied. Let's try to create a test for **invalid arguments**:
 
 ```csharp
 [Fact]
@@ -323,7 +315,7 @@ In this blog post, we covered two important functionalities in the phone book ap
 * Creating a new person with ASP.NET Zero and DevExtreme Angular.
 * Adding a `CreatePerson` method to the `PersonAppService`.
 * Testing the `CreatePerson` method with valid and invalid arguments.
-* Adding the **ability** to create a new person in the c**lient-side** application.
+* Adding the **ability** to create a new person in the **client-side** application.
 * Deleting a person from the phone book.
 * Implementing the `DeletePerson` method in the `PersonAppService`.
 * Updating the client-side service proxies and UI for deleting a person.

blog-posts/en/using-asp.net-zero-with-devextreme-angular-part-4.md

@@ -169,8 +169,7 @@ We have built a fully functional application until here. Now, we will see how to
 
 ### Enable Multi Tenancy
 
-We disabled multi-tenancy at the beginning of this document. Now,
-**re-enabling** it in `PhoneBookDemoConsts` class:
+We disabled multi-tenancy at the beginning of this document. Now, **re-enabling** it in `PhoneBookDemoConsts` class:
 
 ```csharp
 public const bool MultiTenancyEnabled = true;