[DependecyInjection] Added Uses & hints

[mohamedGasmii]

No description provided.

[wouterj]

I'm +1 for the Response return type, but -1 for the uses and Route attribute. The // ... indicates that not all information is present in this example, and the example should stay focussed on what it is demonstrating: the dependency injection.

Also, I see a lot of PRs by you from the past days. It's nice to receive contributions, but many small PRs add a lot of maintenance overhead (reviewing, merging, etc). Please try to combine more changes in a single PR if they are about the same topic (e.g. "add return types to all code examples in the Cache chapter").

[mohamedGasmii]

@wouterj Thank you for your feedback, i removed the uses & route attribute and i try to combine small changes for the next PRs.

[xabbuh]

Thank you @mohamedGasmii.