Update starknet foundry sncast docs

[dalmasonto]

I have create a documentation on how to use sncast extensively in order to interact with contracts on starknet devnet. check it out and if there are any updates, let me know.

[omarespejel]

This is amazing @dalmasonto! Thank you! I merged it and will review it right now. I will come back later today if there is any feedback so we can release the Only Dust award. Thanks!

[omarespejel]

Hey @dalmasonto, great job! I've just merged an edit that refines the format to align it better with the rest of the book. Don't worry; this is a standard part of the process. You can check it out here: [Link to the edited page](https://book.starknet.io/ch02-12-foundry-cast.html). Your work is fantastic; thank you for your contribution!

Would you mind adding another example in the same Cast subchapter where you create a deployment and interaction script for the same smart contract you've already used? For instance, you can create a sh file that tests, declares, deploys, and makes a multicall to the contract. I've discussed this with the Foundry team, and it's a common use case for Cast. You can even utilize the calls you've defined earlier; it's mainly a matter of creating the sh file and demonstrating how to run it. What are your thoughts on this?

[dalmasonto]

Thank you. Yea, will write a script that does the same also. Once done, I will update you

[omarespejel]

thank you @dalmasonto, it is already looking amazing!

[dalmasonto]

Hello @omarespejel, just created a PR for the script. It might not be the best but check it out

[dalmasonto]

@omarespejel I have updated the PR here #220 to make sure that the markdown is properly formatted