docs: fix typo and BibTeX citation casing

[fyvri]

📖 README Documentation Enhancements and Fixes

This PR improves the clarity, consistency, and usability of the Qwen2.5-VL README.

🛠️ Key Changes

• Improve header spacing consistency (e.g., Paper(is coming) → Paper (is coming))
• Fixed broken link in News section
• Fixed typo: "Devicess" → "Devices", "recommanded" → "recommended", and "processer" → "processor".
• Standardized terminology (e.g., "open source" instead of "opensource")
• Fixed BibTeX citation casing (qwen2.5-VL → Qwen2.5-VL)

🚀 Impact

• Readability: Ensures consistent visual hierarchy.
• Credibility: Enhance professionalism and reduce ambiguity for developers and researchers.
• Accessibility: Repaired broken links in the News section ensure users can access critical resources without errors.
• Maintainability: Unified terminology and fixed Markdown syntax simplify future documentation updates.

Let me know if additional refinements are needed! 🙌