Update README.md

README.md

@@ -13,10 +13,10 @@
       <a href="https://chaofengc.github.io" target="_blank">Chaofeng Chen</a><sup>1</sup>,
       <a href="https://liaoliang92.github.io" target="_blank">Liang Liao</a><sup>1</sup>,
       <a href="https://github.com/AnnanWangDaniel" target="_blank">Annan Wang</a><sup>1</sup>,
+      <a href="https://scholar.google.com/citations?user=NBIqaHQAAAAJ&hl=en" target="_blank">Kaixin Xu</a><sup>4</sup>,
   </div>
 
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-      <a href="https://scholar.google.com/citations?user=NBIqaHQAAAAJ&hl=en" target="_blank">Kaixin Xu</a><sup>4</sup>,
       <a href="https://github.com/lcysyzxdxc" target="_blank">Chunyi Li</a><sup>2</sup>,
       <a href="https://scholar.google.com.sg/citations?user=NlNOyiQAAAAJ&hl=en" target="_blank">Jingwen Hou</a><sup>1</sup>,
       <a href="https://ee.sjtu.edu.cn/en/FacultyDetail.aspx?id=24&infoid=153&flag=153" target="_blank">Guangtao Zhai</a><sup>2</sup>,