improve README for documentation (#280)

Author: badmonster0

README.md

@@ -12,7 +12,6 @@
 [![Python](https://img.shields.io/badge/python-3.11%20to%203.13-5B5BD6?logo=python&logoColor=white)](https://www.python.org/)
 [![CI](https://github.com/cocoindex-io/cocoindex/actions/workflows/CI.yml/badge.svg?event=push&color=5B5BD6)](https://github.com/cocoindex-io/cocoindex/actions/workflows/CI.yml)
 [![release](https://github.com/cocoindex-io/cocoindex/actions/workflows/release.yml/badge.svg?event=push&color=5B5BD6)](https://github.com/cocoindex-io/cocoindex/actions/workflows/release.yml)
-[![docs](https://github.com/cocoindex-io/cocoindex/actions/workflows/docs.yml/badge.svg?event=push&color=5B5BD6)](https://github.com/cocoindex-io/cocoindex/actions/workflows/docs.yml)
 [![Discord](https://img.shields.io/discord/1314801574169673738?logo=discord&color=5B5BD6&logoColor=white)](https://discord.com/invite/zpA9S2DR7s)
 [![LinkedIn](https://img.shields.io/badge/LinkedIn-CocoIndex-5B5BD6?logo=linkedin&logoColor=white)](https://www.linkedin.com/company/cocoindex)
 [![X (Twitter)](https://img.shields.io/twitter/follow/cocoindex_io)](https://twitter.com/intent/follow?screen_name=cocoindex_io)

docs/README.md

@@ -1,6 +1,20 @@
-# Website
+<p align="center">
+    <img src="https://cocoindex.io/images/github.svg" alt="CocoIndex">
+</p>
 
-This website is built using [Docusaurus](https://docusaurus.io/), a modern static website generator.
+<h2 align="center">📖 Documentation https://cocoindex.io/docs </h2>
+
+<div align="center">
+
+[![GitHub](https://img.shields.io/github/stars/cocoindex-io/cocoindex?color=5B5BD6)](https://github.com/cocoindex-io/cocoindex)
+[![License](https://img.shields.io/badge/license-Apache%202.0-5B5BD6?logo=opensourceinitiative&logoColor=white)](https://opensource.org/licenses/Apache-2.0)
+[![docs](https://github.com/cocoindex-io/cocoindex/actions/workflows/docs.yml/badge.svg?event=push&color=5B5BD6)](https://github.com/cocoindex-io/cocoindex/actions/workflows/docs.yml)
+
+</div>
+
+
+
+This directory is the source code for the CocoIndex documentation website, built using [Docusaurus](https://docusaurus.io/).
 
 ### Installation