Update medical transcription prompt example

[devin-ai-integration]

Summary

Updates the medical transcription domain-specific sample prompt in the prompt engineering documentation. The changes include:

• Simplified the prompt by removing the "Non-negotiable: Pharmaceutical accuracy" line with explicit drug name examples
• Updated "Best for" description from "Clinical consultations, medical dictation, patient encounters" to "Clinical documentation, medical dictation, patient-provider conversations"
• Updated "Why it works" explanation to reflect the simplified prompt structure

Review & Testing Checklist for Human

• Verify the new prompt text matches the intended requirements - the pharmaceutical accuracy examples were intentionally removed
• Confirm the updated "Best for" and "Why it works" sections accurately describe the new prompt's use case

Notes

Requested by @ryanseams

Link to Devin run: https://app.devin.ai/sessions/96214a6ced474b54bbf425b858744a30

[devin-ai-integration]

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