updated personal link

index.html

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           <h1 class="title is-1 publication-title">DiPPeR: Diffusion-based 2D Path Planner <br> applied on Legged Robots</h1>
           <div class="is-size-4 publication-authors">
             <span class="author-block">
-              <a href="https://rpl-as-ucl.github.io/people/">Jianwei Liu*</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+              <a href="https://jianwei-liu93.github.io/">Jianwei Liu*</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               <a href="https://rpl-as-ucl.github.io/people/">Maria Stamatopoulou*</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               <a href="https://dkanou.github.io/">Dimitrios Kanoulas</a>
               <br><br>