docs: Fix links and formatting

Author: linkdotnet

docs/site/docs/test-doubles/mocking-localizer.md

@@ -4,11 +4,15 @@ title: Mocking Localization via IStringLocalizer
 ---
 
 <p>There are just two steps. First in your setup add the following:</p>
+
 ```csharp
 TestContext.Services.AddLocalization();
 ```
+
 <p>Then in your test code, when you need the localized string to compare, you write the following:</p>
+
 ```csharp
 var localizer = ctx.Services.GetService<IStringLocalizer<SharedStrings>>();
-  ```
+```
+
 <p>Where SharedStrings.cs (you can name this anything you want) that has the resource files such as `SharedStrings.en.resx`</p>

docs/site/docs/toc.md

@@ -25,6 +25,7 @@
 ## [Emulating IJSRuntime](xref:emulating-ijsruntime)
 ## [Faking authorization](xref:faking-auth)
 ## [Mocking HttpClient](xref:mocking-httpclient)
+## [Mocking Localizer](xref:mocking-localizer)
 ## [Faking PersistentComponentState](xref:faking-persistentcomponentstate)
 ## [Faking NavigationManager](xref:fake-navigation-manager)
 ## [Faking IWebAssemblyHostEnvironment](xref:fake-webassemblyhostenvironment)