Update README.md

[kortgrabb]

Description

Updated the grammatical structure in the text from "Chapter 14 on" to "Chapters 14 and onwards" to improve clarity and readability in the documentation.

Motivation and Context

The original phrase "Chapter 14 on" was informal and potentially unclear to readers. This change implements proper grammatical structure while maintaining the same meaning, making the documentation more professional and easier to understand.

How Has This Been Tested?

• Reviewed the modified sentence in context
• Verified that the meaning remains unchanged while improving clarity
• Confirmed that the new phrasing follows standard English grammar rules

Types of changes

• Content Update (change which fixes an issue or updates an already existing submission)
• New Article (change which adds functionality)
• Documentation change

Checklist:

• My code follows the code style of this project.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have made checks to ensure URLs and other resources are valid