fix(docs): Correct useInView docs ,simplify build and add image to readme for better branding

[ketsebaoteth]

Improve Documentation and Add Logo

This pull request addresses several documentation issues and enhances the README with a logo.

Key Changes:

• CONTRIBUTING.md: Added instructions on how to build the documentation locally.
• README.md:
  • Added the Motion-Vue logo with the text "Motion-Vue".
• docs/useInView: Corrected the documentation for the useInView hook. It now accurately states that the hook returns a ref to a boolean. saying it returns a boolean could be confusing
• Documentation Build: Modified the documentation build process to no longer require execa.

Motivation:

These changes aim to improve the overall developer experience by:

• Making the contribution process smoother.
• Enhancing the README with a visual element.
• Ensuring the accuracy of the documentation.
• Simplifying the documentation build process.

Testing:

• Verified that the documentation builds locally without errors.
• Confirmed the correct behavior of the useInView hook.
• Checked the display of the logo in the README.

[rick-hup]

thanks for the contribution !