Add credit-optimizer-v5 to Credits & Sources (#275)

README.md

@@ -388,6 +388,7 @@ This collection would not be possible without the incredible work of the Claude
 - **[whatiskadudoing/fp-ts-skills](https://github.com/whatiskadudoing/fp-ts-skills)**: Practical fp-ts skills for TypeScript – fp-ts-pragmatic, fp-ts-react, fp-ts-errors (v4.4.0).
 - **[webzler/agentMemory](https://github.com/webzler/agentMemory)**: Source for the agent-memory-mcp skill.
 - **[sstklen/claude-api-cost-optimization](https://github.com/sstklen/claude-api-cost-optimization)**: Save 50-90% on Claude API costs with smart optimization strategies (MIT).
+- **[rafsilva85/credit-optimizer-v5](https://github.com/rafsilva85/credit-optimizer-v5)**: Manus AI credit optimizer skill — intelligent model routing, context compression, and smart testing. Saves 30-75% on credits with zero quality loss. Audited across 53 scenarios.
 - **[Wittlesus/cursorrules-pro](https://github.com/Wittlesus/cursorrules-pro)**: Professional .cursorrules configurations for 8 frameworks - Next.js, React, Python, Go, Rust, and more. Works with Cursor, Claude Code, and Windsurf.
 - **[nedcodes-ok/rule-porter](https://github.com/nedcodes-ok/rule-porter)**: Bidirectional rule converter between Cursor (.mdc), Claude Code (CLAUDE.md), GitHub Copilot, Windsurf, and legacy .cursorrules formats. Zero dependencies.
 - **[SSOJet/skills](https://github.com/ssojet/skills)**: Production-ready SSOJet skills and integration guides for popular frameworks and platforms — Node.js, Next.js, React, Java, .NET Core, Go, iOS, Android, and more. Works seamlessly with SSOJet SAML, OIDC, and enterprise SSO flows. Works with Cursor, Antigravity, Claude Code, and Windsurf.