Clean up the first session instructions

- Make add reference instruction consistent
- Made some small tweaks and clarifications

Author: davidfowl

docs/1. Create BackEnd API project.md

@@ -40,10 +40,10 @@
         }
     }
     ```
-1. Add a reference to the NuGet package `Microsoft.EntityFrameworkCore.SqlServer` version `3.0.0-preview6.19304.10`. Note that you'll need to resolve several references by adding missing `using` statements (`Ctrl + .` is your friend).
-    > **If you're not using Visual Studio** install the package from the command line with `dotnet add package Microsoft.EntityFrameworkCore.SqlServer --version 3.0.0-preview6.19304.10`
-1. Add a reference to the NuGet package `Microsoft.EntityFrameworkCore.Sqlite` version `3.0.0-preview6.19304.10`. Note that you'll need to resolve several references by adding missing `using` statements (`Ctrl + .` is your friend).    
-    > **If you're not using Visual Studio** install the package from the command line with `dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 3.0.0-preview6.19304.10`    
+1. Add a reference to the NuGet package `Microsoft.EntityFrameworkCore.SqlServer` version `3.0.0-preview6.19304.10`.
+    > This can be done from the command line using `dotnet add package Microsoft.EntityFrameworkCore.SqlServer --version 3.0.0-preview6.19304.10`
+1. Add a reference to the NuGet package `Microsoft.EntityFrameworkCore.Sqlite` version `3.0.0-preview6.19304.10`.
+    > This can be done from the command line using `dotnet add package Microsoft.EntityFrameworkCore.Sqlite --version 3.0.0-preview6.19304.10`    
 1. Next we'll create a new Entity Framework DbContext. Create a new `ApplicationDbContext` class in the `Models` folder using the following code:
     ```csharp
     using Microsoft.EntityFrameworkCore;
@@ -100,9 +100,10 @@
 
 ## Configuring EF Migrations
 
-### Visual Studio: Package Manager Console 
-
 1. Add a reference to the NuGet package `Microsoft.EntityFrameworkCore.Tools` version `3.0.0-preview6.19304.10`.
+    > **If you're not using Visual Studio** install the package from the command line with `dotnet add package Microsoft.EntityFrameworkCore.Tools --version 3.0.0-preview6.19304.10`
+
+### Visual Studio: Package Manager Console 
 
 1. In Visual Studio, select the Tools -> NuGet Package Manager -> Package Manager Console
 
@@ -174,8 +175,9 @@ In this section, we'll be adding documentation to our API using the Swashbuckle
 
 Additional information on using Swashbuckle in ASP.NET Core is available in this tutorial: [ASP.NET Web API Help Pages using Swagger](https://docs.microsoft.com/en-us/aspnet/core/tutorials/web-api-help-pages-using-swagger)
 
-1. Add a reference to `Swashbuckle.AspNetCore` version `5.0.0-rc2`.
-   > This can be done from the command line using `dotnet add package Swashbuckle.AspNetCore --version 5.0.0-rc2`
+1. Add a reference to the NuGet package `Swashbuckle.AspNetCore` version `5.0.0-rc2`.
+    > This can be done from the command line using `dotnet add package Swashbuckle.AspNetCore --version 5.0.0-rc2`
+
 1. Add the Swashbuckle services in your `ConfigureServices` method:
     ```csharp
     services.AddControllers();
@@ -184,7 +186,7 @@ Additional information on using Swashbuckle in ASP.NET Core is available in this
         options.SwaggerDoc("v1", new OpenApiInfo { Title = "Conference Planner API", Version = "v1" })
     );
     ```
-1. Configure Swashbuckle by adding the following lines to top of the `Configure` method in `Startup.cs`:
+1. Configure Swashbuckle by adding the following lines just before `UseEndpoints` in the `Configure` method in `Startup.cs`:
     ```csharp
     app.UseSwagger();