update lab 4 and set completed code name to lab4

Labs/2. MVC Applications with ASP.NET Core.md

@@ -6,7 +6,7 @@
 
 1. Open Visual Studio 2019
 1. Create a new ASP.NET Core application:
-  1. File -> New -> Project -> ASP.NET Core Web Application
+  1. File -> New -> Project -> ASP.NET Core Web Application (C#)
   2. After naming the project, set the dropdowns to .NET Core and ASP.NET Core 2.2
   3. Select `Web Application (Model-View-Controller)` and change the authentication method to `Individual User Accounts`.
 
@@ -49,7 +49,7 @@
 
 1. Open Visual Studio 2019
 1. Create a new ASP.NET Core application:
-  1. File -> New -> Project -> ASP.NET Core Web Application
+  1. File -> New -> Project -> ASP.NET Core Web Application (C#)
   2. After naming the project, set the dropdowns to .NET Core and ASP.NET Core 2.2 and select the Empty template.
 
 ### Configure the routing package

Labs/3. Startup, Hosting and Middleware.md

@@ -3,7 +3,7 @@
 
 1. Open Visual Studio 29019
 1. Create a new ASP.NET Core application:
-  1. File -> New -> Project -> ASP.NET Core Web Application
+  1. File -> New -> Project -> ASP.NET Core Web Application (C#)
   2. Name the project, set the dropdowns to .NET Core and ASP.NET Core 2.2 and select the Empty template.
 
 ## Running the application under IIS

Labs/4. Dependency Injection & Unit Testing.md

@@ -1,7 +1,8 @@
 # Using Dependency Injection (DI) to register and resolve application services
 
 ## Creating a service to assign request IDs
-1. Create a new application using the ASP.NET Core Web Application (.NET Core) (Empty Template)
+1. File -> New -> Project -> ASP.NET Core Web Application (C#)
+  1. Name the project, set the dropdowns to .NET Core and ASP.NET Core 2.2 and select the Empty template.
 1. Create a folder in the application called `Services`
 1. Create a new class file in the `Services` folder `RequestId`
 1. In the file, create an interface `IRequestIdFactory` with a single method `string MakeRequestId()`
@@ -122,7 +123,7 @@
 
 1. Run the application. You should see the logging messages from the middleware in the console output.
 
-> **Note:** Completed code for this section is found [/Labs/Code/Lab5](/Labs/Code/Lab5).
+> **Note:** Completed code for this section is found [/Labs/Code/Lab4](/Labs/Code/Lab4).
 
 # Adding a unit test project
 

Labs/Code/Lab5/Lab5.sln → Labs/Code/Lab4/Lab4.sln

@@ -5,7 +5,7 @@ VisualStudioVersion = 15.0.26020.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{665FCCEE-47C5-4936-ADA0-F7E3A0430E87}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab5", "src\Lab5\Lab5.csproj", "{091CD54A-0190-4CFC-A20E-BABD61799536}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Lab4", "src\Lab4\Lab4.csproj", "{091CD54A-0190-4CFC-A20E-BABD61799536}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

Labs/Code/Lab5/src/Lab5/Program.cs → Labs/Code/Lab4/src/Lab4/Program.cs

@@ -6,7 +6,7 @@
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 
-namespace Lab5
+namespace Lab4
 {
     public class Program
     {

Labs/Code/Lab5/src/Lab5/Properties/launchSettings.json → Labs/Code/Lab4/src/Lab4/Properties/launchSettings.json

@@ -15,7 +15,7 @@
         "ASPNETCORE_ENVIRONMENT": "Development"
       }
     },
-    "Lab5": {
+    "Lab4": {
       "commandName": "Project",
       "launchBrowser": true,
       "launchUrl": "http://localhost:5000",

Labs/Code/Lab5/src/Lab5/Startup.cs → Labs/Code/Lab4/src/Lab4/Startup.cs

@@ -3,7 +3,7 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.DependencyInjection;
 
-namespace Lab5
+namespace Lab4
 {
     public class Startup
     {