chore: upgrade dumi@2.x (#148)

* chore(deps): upgrade dumi@2.x

* chore: update

* chore: update config file

* docs: update

* docs: update docs

* docs: update

* chore: update

* chore: update

* chore: remore debug link

* chore: update global.less

README.md

@@ -79,7 +79,7 @@ Please leave a message at [**here**](https://github.com/actions-cool/issues-help
   </td>
   <td align="center" width="180">
     <a href="https://github.com/umijs/dumi">
-      <img src="https://avatars1.githubusercontent.com/u/33895495?s=200&v=4" width="46"/>
+      <img src="https://gw.alipayobjects.com/zos/bmw-prod/d3e3eb39-1cd7-4aa5-827c-877deced6b7e/lalxt4g3_w256_h256.png" width="46"/>
     </a>
   </td>
   <td align="center" width="180">