Fix readme outline

[zrq1706]

This pull request makes minor adjustments to the README.md file to fix section numbering and remove an unused citation block.

Documentation updates:

• Fixed the numbering of the "Changelog," "License," and "Contributing" sections in the table of contents to ensure they match their actual section numbers. (README.md)
• Removed an unused citation block from the "Contributing" section to streamline the documentation. (README.md)

[Copilot]

Pull Request Overview

This PR corrects the table of contents numbering in the README and removes an obsolete citation block for clarity.

• Updated TOC entries for Changelog, License, and Contributing to match actual section numbers.
• Deleted the unused HTML citation block in the Contributing section.

Comments suppressed due to low confidence (3)

README.md:20

• Indent this line to match the existing TOC entry formatting and ensure consistent list alignment.

5. [Changelog](#5-changelog)

README.md:21

• Indent this line to match the existing TOC entry formatting and ensure consistent list alignment.

6. [License](#6-license)

README.md:22

• Indent this line to match the existing TOC entry formatting and ensure consistent list alignment.

7. [Contributing](#7-contributing)