Update docs/book/v5/core-features/dependency-injection.md

Author: alexmerlin

docs/book/v5/core-features/dependency-injection.md

@@ -57,5 +57,5 @@ public function getDependencies(): array
 That's it. By registering this, when your object will be instantiated from the container, it will automatically have its
 dependencies resolved.
 
-> Dependencies injection applies to any object within DotKernel API, for example, you could inject dependencies in
+> Dependencies injection applies to any object within DotKernel API. For example, you could inject dependencies in a
 > a service and so on, just need to register it in the `ConfigProvider`