docs: fix Node OCR README example

[CooperSheroy]

Summary

• fix the hosted OCR Node.js quick-start example in the top-level README so the object literal is closed correctly
• use a distinct ocrMarkdown variable so the full JavaScript example block parses cleanly

Verification

• git diff --check
• extracted the first README js block and ran node --input-type=module --check -

---

Summary by cubic

Fixes the Node.js OCR example in the README so the code block parses without syntax errors.

• Corrects the mismatched parenthesis in the toMarkdown call's object literal.
• Renames the OCR example variable to ocrMarkdown so it doesn't shadow the earlier markdown declaration.

^{Written for commit c52b46b. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 1 file

_{Re-trigger cubic}