fix(README.md): typo in reeds-shepp path (AtsushiSakai#1031)

Signed-off-by: Yukihito Saito <[email protected]>

Author: yukkysaito

README.md

@@ -407,7 +407,7 @@ Ref:
 
 ### RRT\* with reeds-shepp path
 
-![Robotics/animation.gif at master · AtsushiSakai/PythonRobotics](https://github.com/AtsushiSakai/PythonRoboticsGifs/raw/master/PathPlanning/RRTStarReedsShepp/animation.gif))
+![Robotics/animation.gif at master · AtsushiSakai/PythonRobotics](https://github.com/AtsushiSakai/PythonRoboticsGifs/raw/master/PathPlanning/RRTStarReedsShepp/animation.gif)
 
 Path planning for a car robot with RRT\* and reeds shepp path planner.