README を更新する

README.md

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 # Sora JavaScript SDK サンプル
 
+![Static Badge](https://img.shields.io/badge/Checked_with-Biome-60a5fa?style=flat&logo=biome)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+
+[Sora JavaScript SDK](https://github.com/shiguredo/sora-js-sdk) のサンプルです。
+
+## About Shiguredo's open source software
+
+We will not respond to PRs or issues that have not been discussed on Discord. Also, Discord is only available in Japanese.
+
+Please read <https://github.com/shiguredo/oss> before use.
+
+## 時雨堂のオープンソースソフトウェアについて
+
+利用前に <https://github.com/shiguredo/oss> をお読みください。
+
 ## 使い方
 
 ```bash
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 ```
 
 ## ライセンス
+
+Apache License 2.0
+
+```text
+Copyright 2025-2025, Shiguredo Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```