small fix

Author: Coppelia

en/jointCallbackFunctions.htm

@@ -41,7 +41,8 @@ <h1>Joint callback functions</h1>
     # inData['highLimit'] : the higher limit of the joint (if the joint is not cyclic)
     # inData['dt'] : the step size used for the calculations
     # inData['pos'] : the current position
-    # inData['vel'] : the current velocity
+    # inData['vel'] : the current velocity (only with Mujoco)
+    # inData['accel'] : the current acceleration (only with Mujoco)
     # inData['targetPos'] : the desired position (if joint is dynamic, or when sim.setJointTargetPosition was called)
     # inData['targetVel'] : the desired velocity (if joint is dynamic, or when sim.setJointTargetVelocity was called)
     # inData['initVel'] : the desired initial velocity (if joint is kinematic and when sim.setJointTargetVelocity
@@ -92,7 +93,8 @@ <h1>Joint callback functions</h1>
     -- inData.highLimit : the higher limit of the joint (if the joint is not cyclic)
     -- inData.dt : the step size used for the calculations
     -- inData.pos : the current position
-    -- inData.vel : the current velocity
+    -- inData.vel : the current velocity (only with Mujoco)
+    -- inData.accel : the current acceleration (only with Mujoco) 
     -- inData.targetPos : the desired position (if joint is dynamic, or when sim.setJointTargetPosition was called)
     -- inData.targetVel : the desired velocity (if joint is dynamic, or when sim.setJointTargetVelocity was called)
     -- inData.initVel : the desired initial velocity (if joint is kinematic and when sim.setJointTargetVelocity