finish + revise prompt design docs [few-shot]

[shreya-51]

[✅] sgicl [✅] example ordering [] knn [] votek

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:rocket:	This description was created by Ellipsis for commit 930643a00841cc46d3b43496e11b5e872ae980e5

Summary:

This PR revises the SG-ICL documentation by updating example generation methods, renaming sections for clarity, and ensuring consistency across navigation files.

Key points:

• Updated docs/prompting/few_shot/example_generation/sg_icl.md to improve explanation and implementation of SG-ICL.
• Changed class names and function parameters in sg_icl.md for clarity and consistency.
• Renamed section in docs/prompting/index.md from "Auto-Generate Examples" to "Generate Examples".
• Updated mkdocs.yml to reflect changes in navigation titles for consistency.

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[jxnl]

Closing as part of repository maintenance for pull requests created before 2025.