[Enhancement]: <corrected text for transaction execution explanation>

[Kd502020]

What would you like us to improve?

After a careful read through the Scroll documentation while I was writing my report on zk-proofs, I found some mistakes that I believe the team didn't notice. After careful consideration, I decided to submit a pull request with these findings and corrections as my small contribution to the Scroll docs. As someone passionate about blockchain technology and zk-proof scaling solutions, I believe these corrections address the issues in the original Scroll docs. Thank you, and I hope this will be looked into.

How important it is?

It is crucial for users to have accurate and well-maintained documentation because it directly impacts their ability to understand and effectively use the technology. Correct documentation ensures that users can:
1:Understand Concepts Clearly.
2:Build Confidence: Reliable documentation builds trust and confidence in the technology, encouraging more widespread adoption and innovation.