docs: update @self() decorator explanation (#51342)

PR Close #51342

aio/content/guide/hierarchical-dependency-injection.md

@@ -232,7 +232,7 @@ For example, in the following `SelfComponent`, notice the injected `LeafService`
 
 <code-example header="src/app/self-no-data/self-no-data.component.ts" path="resolution-modifiers/src/app/self-no-data/self-no-data.component.ts" region="self-no-data-component"></code-example>
 
-In this example, there is a parent provider and injecting the service will return the value, however, injecting the service with `@Self()` and `@Optional()` will return `null` because `@Self()` tells the injector to stop searching in the current host element.
+In this example, there is a parent provider and injecting the service will return the value, however, injecting the service with `@Self()` and `@Optional()` will return `null` because `@Self()` tells the injector to only search in the current host element.
 
 Another example shows the component class with a provider for `FlowerService`.
 In this case, the injector looks no further than the current `ElementInjector` because it finds the `FlowerService` and returns the tulip <code>&#x1F337;</code>.