Fix list formatting in tutorial markdown

Author: wadepickett

aspnetcore/tutorials/first-web-api.md

@@ -65,8 +65,8 @@ The following diagram shows the design of the app.
 
 This tutorial uses the following additional NuGet packages:
 
-  * `Microsoft.EntityFrameworkCore.InMemory`: Enables Entity Framework Core to work with an in-memory database rather than an external one, simplifying this tutorial.
-  * `Swashbuckle.AspNetCore.SwaggerUI`: Provides a user interface for exploring and testing API endpoints interactively through Swagger.
+* `Microsoft.EntityFrameworkCore.InMemory`: Enables Entity Framework Core to work with an in-memory database rather than an external one, simplifying this tutorial.
+* `Swashbuckle.AspNetCore.SwaggerUI`: Provides a user interface for exploring and testing API endpoints interactively through Swagger.
 
 * Add the following NuGet packages used in this tutorial:
   * From the **Tools** menu, select **NuGet Package Manager > Manage NuGet Packages for Solution**.