message: [docs] fix link
  see
diff: @@ -273,7 +273,7 @@ You can also directly control the current of the motor, which is proportional to
  - [Circular position control](#circular-position-control)
  - [Velocity control](#velocity-control)
  - [Ramped velocity control](#ramped-velocity-control)
  -- [Current control](#current-control)
  +- [Torque control](#torque-control)
  ### Filtered position control
  