Merge branch 'main' into manage-context-lifetime

Author: jasonsummers

docs/index.md

@@ -38,4 +38,4 @@ Read the [Getting Started section](getting-started/). You can also [review the s
 
 ## Docs theme notes
 
-This docs site is using the [Just the Docs theme](https://pmarsceill.github.io/just-the-docs/docs/navigation-structure/). Details on how to configure its metadata and navigation can be found [here](https://pmarsceill.github.io/just-the-docs/docs/navigation-structure/).
+This docs site is using the [Just the Docs theme](https://just-the-docs.github.io/just-the-docs/). Details on how to configure its metadata and navigation can be found [here](https://just-the-docs.github.io/just-the-docs/docs/navigation-structure/).

docs/usage/use-built-in-abstract-repository.md

@@ -138,7 +138,7 @@ public async Task<Hero> GetByName(string name)
 {
     var spec = new HeroByNameSpec(name);
 
-    return await _heroRepository.GetBySpecAsync(spec);
+    return await _heroRepository.FirstOrDefaultAsync(spec);
 }
 ```
 
@@ -249,7 +249,7 @@ public class HeroService
     {
         var spec = new HeroByNameSpec(name);
 
-        return await _heroRepository.GetBySpecAsync(spec);
+        return await _heroRepository.FirstOrDefaultAsync(spec);
     }
 
     public async Task<List<Hero>> GetHeroesFilteredByNameAndSuperPower(string name, string superPower)