docs: Add blog post link and convert logo to PNG format

- Add Medium blog post link about slash commands to README files
- Convert claude-howto-logo.svg to PNG format (1024x256)
- Replace old claude-ai-icon.webp with new logo
- Update .gitignore to exclude blog-posts directory

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Luong NGUYEN
2025-11-08 19:12:11 +01:00
parent 346a2fa993
commit 1df7ed4916
5 changed files with 5 additions and 1 deletions

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