add more real-world examples

[suaviloquence]

Get a good example of a scrapelect program. It would be helpful if it helped showcase a certain feature, but all examples are welcome.

1. Find a problem that a scrapelect .scrp can solve, and create this scrp.

• See the scrapelect book for help writing a program, or ask here

2. Check in the .scrp file in the examples/scrps directory, and leave a comment for what URL it's running on.
3. Consider adding an integration test in src/interpreter/mod.rs if it doesn't require an internet connection

• add the HTML file in examples/inputs with the same name as the .scrp file
• add it to the integration_test! macro at the bottom of src/interpreter/mod.rs
• run cargo test (it should fail) and use cargo insta to update the snapshot in the examples/output directory (or move the .snap.new to .snap once it looks good) -- and check this file into git

4. If it does require an internet connection (I want to improve this infrastructure), add a comment at the top of the file with the URL

Submit a pull request! 🐱