docs(readme): add badges & updates (#160)

* docs: add badges, readme tweaks

* docs: add auto-generated captions bullet

README.md

@@ -1,14 +1,18 @@
 # `next-video`
 
+[![npm version](https://img.shields.io/npm/v/next-video?style=flat-square&color=success)](http://npmjs.org/next-video) 
+[![size](https://img.shields.io/bundlephobia/minzip/next-video?label=size&style=flat-square)](https://bundlephobia.com/result?p=next-video) 
+
 Next video is a react component for adding video to your [next.js](https://github.com/vercel/next.js) application. It extends both the `<video>` element and your Next app with features for automatic video optimization.
 
 - **Smart storage:** Store large video files outside of your git repo
-- **Auto optimized**: Automatically optimize video files and deliver via CDN for better playback performance and quality
+- **Auto optimized**: Optimize video files and deliver via CDN for better playback performance and quality
 - **Customizable UI:** Choose from themes or build your own player controls
 - **Posters & Previews:** Zero-config placeholder images and timeline hover thumbnails
 - **Wider compatibility:** Use videos that aren’t supported natively by all browsers
 - **Analytics built-in (optional):** See how often videos get watched and track video performance
-- **AI-powered:** Whisper captions coming soon...
+- **AI-powered:** Add [auto-generated captions](https://docs.mux.com/guides/add-autogenerated-captions-and-use-transcripts?utm_source=next-video.dev) to your videos and use transcripts
+
 
 ```tsx
 import Video from 'next-video';
@@ -305,9 +309,9 @@ If you're using Amazon S3 as the provider, you'll need to create a new IAM user
 
 ### v1
 
-- [ ] Customizable player
+- [x] Customizable player
 - [x] Connectors for additional video services
-- [ ] AI captions
+- [x] AI captions
 
 ## Trying it out locally