docs: refine README usage and ecosystem note

Author: afc163

README.md

@@ -1,10 +1,7 @@
 <div align="center">
   <h1>@rc-component/segmented</h1>
+  <p><sub>Part of the Ant Design ecosystem.</sub></p>
   <p>🧩 React segmented control for switching between compact options.</p>
-  <p>
-    <img alt="Ant Design" src="https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*FBw7Rr5aC7AAAAAAAAAAAAAADrJ8AQ/original" height="24" />
-  </p>
-  <p>Part of the Ant Design ecosystem.</p>
 
   <p>
     <a href="https://www.npmjs.com/package/@rc-component/segmented"><img src="https://img.shields.io/npm/v/@rc-component/segmented.svg?style=flat-square" alt="npm version" /></a>
@@ -16,6 +13,7 @@
   </p>
 </div>
 
+
 ## Highlights
 
 - Supports string, number, and labeled option records.