Update README

README.md

@@ -1,7 +1,25 @@
-# Koma
+<div align="center">
+  <img width="100" src="./public/icon.png" />
+  <h1>Koma</h1>
+  <img width="600" src="./screenshot.png" alt="Screenshot of the app" />
+</div>
 
-A web-based stop-motion tool based on [Tethr](https://github.com/baku89/tethr), camera controlling library built on WebUSB. Koma (コマ) means “frames” in Japanese, but I'm wondering if there's nicer name for the app.
+A open-source stop-motion tool that runs on browsers. It allows you to shoot while tethring usb-connected cameras such as DSLMs, DSLRs, and webcams. Technically, it's bulit upon [Picture Transfer Protocol](https://en.wikipedia.org/wiki/Picture_Transfer_Protocol), [WebUSB API](https://developer.mozilla.org/en-US/docs/Web/API/USB) and its wrapper library [Tethr](https://github.com/baku89/tethr). Note that this project has been developed for my own animation project and is still in early stage of working-in-progress. So it might not work in your environment yet.
+
+FYI, Koma (コマ) means “frames” in Japanese, but I'm wondering if there's nicer name for the app.
+
+## Development
+
+```bash
+git clone --recursive https://github.com/baku89/koma
+yarn install
+yarn dev
+```
 
 ## Credits
 
 - Sound Effects by [OtoLogic](https://otologic.jp/free/license.html) ([CC-BY 4.0](https://creativecommons.org/licenses/by/4.0/))
+
+```
+
+```