What does this PR introduce?

Updates project logo from v2.0 to v2.1 in README.

Resolved or linked issues?

N/A

Notable Changes

Minor visual update:

• Updated logo reference in README.md to use kebab-krafter-v2.1.png
• Added new v2.1 logo image file

Pay more attention to the following files

• README.md - Updated logo reference
• docs/kebab-krafter-v2.1.png - New logo file

Does this change require updates outside of the code, like updating the documentation, configuration? If so, was this done?

No additional updates required. This is a self-contained visual change.

Testing Steps

1. View README.md and verify new logo displays correctly
2. Confirm image dimensions and quality are maintained
3. Check logo link functionality

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes follow the CONTRIBUTION guidelines
• My comments follow the CODE OF CONDUCT
• If my changes introduce external components, the component licenses are following the LICENSE GUIDELINES