docs(readme): fix logo size

[jhosepmyr]

Description of Change

Section modified:

Motivation:

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Type of Change

• New section or subsection
• Update to existing content
• New diagram or image
• Typo or writing correction
• Incorrect data or information fix
• Structure reorganization (no content change)
• Asset change (image replacement)

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Checklist Before Requesting Review

• The PR targets develop (not main)
• The branch name follows the convention feature/* or bugfix/*
• Commits follow the Conventional Commits convention (feat:, fix:, docs:, etc.)
• CHANGELOG.md has been updated with the change made
• New images are placed in the correct assets/ subfolder
• Image links in the README render correctly
• Spelling of added or modified content has been reviewed
• No generated files are included (.pdf, .docx, .html)

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Screenshots or Evidence (optional)

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Suggested Reviewers