Fix typo in OpenAI Codex installation guide link

Author: leereilly

README.md

@@ -83,7 +83,7 @@ Alternatively, to manually configure VS Code, choose the appropriate JSON block
 
 - **[GitHub Copilot in other IDEs](/docs/installation-guides/install-other-copilot-ides.md)** - Installation for JetBrains, Visual Studio, Eclipse, and Xcode with GitHub Copilot
 - **[Claude Applications](/docs/installation-guides/install-claude.md)** - Installation guide for Claude Desktop and Claude Code CLI
-- **[Codex](/docs/installation-guides/install-codex.md)** - Installation guide for Open AI Codex
+- **[Codex](/docs/installation-guides/install-codex.md)** - Installation guide for OpenAI Codex
 - **[Cursor](/docs/installation-guides/install-cursor.md)** - Installation guide for Cursor IDE
 - **[Windsurf](/docs/installation-guides/install-windsurf.md)** - Installation guide for Windsurf IDE
 - **[Rovo Dev CLI](/docs/installation-guides/install-rovo-dev-cli.md)** - Installation guide for Rovo Dev CLI