fix picture bugs

Code/Control/Laptop_Code/README.md

@@ -92,7 +92,7 @@ There are two files about main code:
 
 #### 3.1.2 main_joystick flowchart
 
-![](/Figs/joystick_flowchart.jpg)
+![](Figs/joystick_flowchart.jpg)
 
 ### 3.2 Functions name and their inputs outputs
 
@@ -144,7 +144,7 @@ auto_init()
 
 ### 3.3 Joystick control description
 
-![](/Figs/Xbox-360_controller.svg.png)
+![](Figs/Xbox-360_controller.svg.png)
 
 - Button A: auto control
   - Button B: manually determine ball capture status