docs: update README

README.md

@@ -1 +1,34 @@
-## elegant nnw
+<h1 align="center">Elegant Theme for NetNewsWire</h1>
+
+<p align="center">A beautiful, elegant theme for <a href="https://netnewswire.com/">NetNewsWire RSS reader</a>.</p>
+<p align="center">
+  <img src="https://img.shields.io/badge/elegant--theme-downloads-00dd83" alt="install theme to NetNewsWire"></img>
+</p>
+
+
+## Screenshots
+
+## About Font
+
+The current theme font application rules are as follows
+
+```css
+.font-sans{
+  font-family: ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
+}
+
+.font-mono{
+  font-family: ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace
+}
+```
+
+## Thanks
+
+- [UnoCSS](https://github.com/unocss/unocss) The instant on-demand atomic CSS engine. 
+- [Windi CSS](https://windicss.org/)
+- [Tailwind CSS](https://tailwindcss.com/)
+
+
+## License
+
+MIT - Copyright (c) 2023 Chang Jun