🎨 Palette: Add contextual tooltips to README links

[google-labs-jules]

💡 What: Added title attributes to key informational links in README.md.
🎯 Why: To provide users with helpful tooltips on hover, offering extra context about a link's destination before they click. This improves the scannability and usability of the profile.
📸 Before/After: N/A (This is a non-visual change, affecting behavior on hover).
♿ Accessibility: While title attributes can provide some benefit, they are not a replacement for descriptive link text. The existing link text is already clear, and this change layers a small, helpful enhancement on top of it.

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PR created automatically by Jules for task 17638752220098518784 started by @Moohan

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