Updated the instructions to reflect the code (#384)

* Updated the instructions to reflect the code

* Match spacing from code

Author: MisinformedDNA

Diff for: 4-WebApp-your-API/4-2-B2C/README-incremental-instructions.md

@@ -248,12 +248,13 @@ using Microsoft.AspNetCore.Authentication.JwtBearer;
 
   ```Csharp
   services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
-          .AddMicrosoftWebApi("AzureAdB2C", Configuration, options =>
-    {
-        Configuration.Bind("AzureAdB2C", options);
+          .AddMicrosoftWebApi(options =>
+  {
+      Configuration.Bind("AzureAdB2C", options);
 
-        options.TokenValidationParameters.NameClaimType = "name";
-    });
+      options.TokenValidationParameters.NameClaimType = "name";
+  },
+  options => { Configuration.Bind("AzureAdB2C", options); });
   ```
 
   - Add the method **app.UseAuthentication()** before **app.UseMvc()** in the `Configure` method