chore: fix sponsor link

Author: yyx990803

BACKERS.md

@@ -72,8 +72,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://starter.someline.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">

README.md

@@ -80,8 +80,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://starter.someline.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">