Require power board on top of robot

Co-authored-by: Alistair Lynn <[email protected]>

src/index.html

@@ -97,8 +97,7 @@ <h2><a class="anchor" id="regulations"></a>Regulations</h2>
               Robots must provide adequate protection to the batteries they use, including
               using the provided battery box which must be securely mounted to the robot.
             <li>
-              Robots must have a power switch, obvious and on top, which will completely immobilise
-              the robot.
+              The power board must be mounted on the top of the robot, with its buttons easily accessible.
           </ol>
         <li>
           While accidental bumps and scrapes are inevitable, the sport is non-contact.