chore: update README and LICENSE

LICENSE

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+MIT License
+
+Copyright (c) 2023-present, The RSS3 Community
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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-# RSS3 Node
+<!-- markdownlint-disable -->
+<p align="center">
+  <a href="https://rss3.io" target="_blank" rel="noopener noreferrer">
+    <!-- RSS3 White logo, used the hosting for an absolute link -->
+    <img width="180" src="https://cdn.jsdelivr.net/gh/rss3-network/rss3-assets/logo.svg" alt="RSS3 logo">
+  </a>
+</p>
+<p align="center">
+  <a href="https://link.rss3.io/x"><img src="https://img.shields.io/twitter/follow/rss3_?color=%230072ff" alt="follow RSS3 on X"></a>
+  <a href="https://link.rss3.io/discord"><img src="https://img.shields.io/badge/chat-discord-blue?style=flat&logo=discord&color=%230072ff" alt="Join RSS3 Discord"></a>
+  <!-- add NPM and other badges when needed -->
+</p>
+<!-- markdownlint-enable -->
+
+# RSS3 Serving Node
+
+The RSS3 Serving Node, an RSS3 Data Sublayer (DSL) component, is responsible for indexing, transforming, storing, and ultimately serving the Open Information to the end users.
+
+## License
+
+<!-- We use MIT as it's almost unrestricted. -->
+
+[MIT](LICENSE).