update agents md to sync with makefile and readme

AGENTS.md

@@ -7,8 +7,10 @@ This project builds a presentation deck for Marp based on Markdown files.
 
 ## Build Commands
 - `npm run build` - Build slides from Markdown using Marp
+- `npm run dev` - Start development server at http://localhost:8080
 - `npm run watch` - Watch mode for live preview during development
-- `npm run export` - Export slides to PDF/HTML formats
+- `npm run export:pdf` - Export slides to PDF format
+- `npm run export:html` - Export slides to HTML format
 
 ## Test Commands
 - `npm test` - Run all tests
@@ -23,7 +25,7 @@ This project builds a presentation deck for Marp based on Markdown files.
 - Use `themes/` for custom Marp themes
 
 ### Naming Conventions
-- Slide files: `01-intro.md`, `02-content.md` (numbered prefix)
+- Slide files: `index.md`, `additional-slides.md` (descriptive names)
 - Images: `snake_case.jpg` or `kebab-case.jpg`
 - Themes: `custom-theme.css`
 
@@ -40,4 +42,13 @@ This project builds a presentation deck for Marp based on Markdown files.
 ### Git Workflow
 - Commit slide changes with descriptive messages (ALWAYS lowercase)
 - Use feature branches for major slide revisions
-- Tag releases with version numbers
+- Tag releases with version numbers
+
+## Makefile Commands
+- `make build` - Build slides from Markdown
+- `make dev` - Start development server
+- `make watch` - Watch for changes and rebuild
+- `make pdf` - Export slides to PDF
+- `make html` - Export slides to HTML
+- `make clean` - Remove generated files
+- `make install` - Install dependencies