Add more examples to e2e

[Leouarz]

Pull Request type

Please add the labels corresponding to the type of changes your PR introduces:

• [x] Documentation
• [x] Testing

Description

This adds examples on how to retrieve data and their app_id

Testing Performed

Checklist

• [x] I have performed a self-review of my own code.
• [x] The tests pass successfully with cargo test.
• [x] The code was formatted with cargo fmt.
• [x] The code compiles with no new warnings with cargo build --release and cargo build --release --features runtime-benchmarks.
• [x] The code has no new warnings when using cargo clippy.
• [x] If this change affects documented features or needs new documentation, I have created a PR with a documentation update.