docs: 更新DEMO地址链接

README.md

@@ -38,7 +38,7 @@
 <p align="center">
   <a href="https://unibest.tech/" target="_blank">📖 文档地址(new)</a>
   <span style="margin:0 10px;">|</span>
-  <a href="https://feige996.github.io/hello-unibest/" target="_blank">📱 DEMO 地址</a>
+  <a href="https://unibest-tech.github.io/hello-unibest" target="_blank">📱 DEMO 地址</a>
 </p>
 
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