Update README.md

README.md

@@ -72,8 +72,8 @@ Directory Structure
 </table>
 <table>
   <tr>
-    <td><img src="https://github.com/zhm-real/path-planning-algorithms/blob/master/Search-based%20Planning/gif/D_star.gif" alt="dstar" width="400"/></a></td>
     <td><img src="https://github.com/zhm-real/path-planning-algorithms/blob/master/Search-based%20Planning/gif/LPAstar.gif" alt="lpastar" width="400"/></a></td>
+    <td><img src="https://github.com/zhm-real/path-planning-algorithms/blob/master/Search-based%20Planning/gif/D_star_Lite.gif" alt="dstarlite" width="400"/></a></td>
   </tr>
 </table>
 </div>