docs: update readme

README.md

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 # Breathe Relaxer
 
-Calm your mind, Relax your body.
+A relaxing breathing app with a visual director to tell you when to breathe in, hold and breathe out.
+
+Calm down your mind, Relax your body.
 
 ![pc demo image](pc.demo.png)
 
 Visit: [Breathe Relaxer](https://works.yangerxiao.com/breathe-relaxer/)
+
+## Features
+
+- Beautiful background images
+- BGM
+- Fullscreen
+- Multilinguage
+- Share your friends if you like it !
+
+## Support
+
+<a href="https://www.producthunt.com/posts/breathe-relaxer?utm_source=badge-featured&utm_medium=badge&utm_souce=badge-breathe-relaxer" target="_blank"><img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=184350&theme=dark" alt="Breathe Relaxer - Calm down your mind, relax your body | Product Hunt Embed" style="width: 250px; height: 54px;" width="250px" height="54px" /></a>