add presentation-1.png thumbnail

GDG Kolachi "Claude Code & Gemini CLI" presentation thumbnail used by
the new How to Use → Presentations sub-section in README.

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Shayan Rais
2026-05-02 15:41:41 +05:00
parent e9b36f7d6c
commit 1e8a5e53bd
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