vary video formats in README

README.md

@@ -21,8 +21,8 @@ Create a markdown file in `/docs` directory. The filename should match the video
 
 For example:
 - Video file: `my video [abc123].mp4` → Markdown file: `my_video.md`
-- Video file: `presentation.mp4` → Markdown file: `presentation.md`
-- Video file: `my-video [xyz].mp4` → Markdown file: `my-video.md`
+- Video file: `presentation.webm` → Markdown file: `presentation.md`
+- Video file: `my-video [xyz].mpeg` → Markdown file: `my-video.md`
 
 The markdown file content can be:
 
@@ -68,9 +68,8 @@ This starts the VitePress development server and WebSocket server for communicat
 ### Step 4: Use the Downloader Interface
 
 1. Open the VitePress website in your browser
-2. Find the downloader component
-3. Enter your video filename in the textbox
-4. Press Enter or Submit
+2. Enter your video filename in the textbox (e.g. `my video [abc123].mp4`, `presentation.webm`, `my-video [xyz].mpeg`)
+3. Press Enter or click Submit
 
 The app will:
 - Load the video
@@ -98,7 +97,7 @@ group-similar.js               # Script for deduplicating similar screenshots
 ## Dependencies
 
 - Node.js and pnpm
-- VitePress for static site generation
+- VitePress for web UI
 - WebSocket for real-time communication between browser and server
 - gray-matter for parsing YAML frontmatter
 - [Sharp](https://github.com/lovell/sharp) for image processing (screenshot manipulation)