chore: update readme (#16668)

README.md

@@ -66,6 +66,11 @@ You can also try Element Plus out with the components built-in playground.
 <table align="center" cellspacing="0" cellpadding="0">
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://melecode.com/" target="_blank">
+          <img width="150px" src="https://github.com/element-plus/element-plus/assets/82012629/9ca4269c-7545-4463-9bdc-8e5a1fbd0b08">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://www.vform666.com/" target="_blank">
           <img width="150px" src="https://user-images.githubusercontent.com/17680888/156870588-b25a42d5-888b-4943-8b1b-5239dfd8f4d2.png">

docs/.vitepress/config/sponsors.ts

@@ -32,6 +32,14 @@ export const rightLogoSmallSponsors = [
 ]
 
 export const leftCustomImgSponsors = [
+  {
+    name: '美乐',
+    img: '/images/sponsors/mele.png',
+    url: 'https://melecode.com/',
+    slogan: 'Enterprise-level low-code development platform',
+    slogan_cn: '企业级全栈低代码开发平台',
+    banner_img: '/images/sponsors/mele-banner.png',
+  },
   {
     name: 'VForm',
     img: '/images/vform.png',