Add README

README.md

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+# Kindolphin
+
+![](public/assets/ogp.png)
+
+The interactive GIF Webtoon viewer, which works as a progressive web app. The app is originally made for the promotion of group_inou's new single “HAPPENING”.
+
+Designed, art directed, and implemented by [Baku Hashimoto](https://baku89.com).
+
+## How to make it work on your local machine
+
+### 1. Clone the repository
+
+```bash
+$ git clone https://github.com/baku89/group-inou-happening
+$ cd group-inou-happening
+```
+
+### 2. Just buy their music
+
+1. Purchase at the [group_inou's Bandcamp](https://gal-official.bandcamp.com/album/happy) then download the MP3 file.
+2. Put the `group_inou - HAPPY - 03 HAPPENING.mp3` file into the `public/assets` directory.
+
+### 3. Install dependencies and launch the app
+
+```bash
+yarn
+yarn dev
+```
+
+## License
+
+注意: [public](./public) ディレクトリ以下のファイルはGALとAC部 (c) 2024に帰属します。それ以外のファイルはMITライセンスのもとで公開されています。詳細は[LICENSE](./LICENSE)ファイルを参照してください。
+
+Note that the assets under the [public](./public) directory is under the copyright of GAL and AC部 (c) 2024.　All other files in the repository is licensed under the MIT License. See the [LICENSE](./LICENSE) file for details.