Update babylon.physicsJoint.ts

src/Physics/babylon.physicsJoint.ts

@@ -189,7 +189,7 @@ module BABYLON {
         length: number;
         stiffness: number;
         damping: number;
-        /* this callback will be called when applying the force to the impostors. */
+        /** this callback will be called when applying the force to the impostors. */
         forceApplicationCallback: () => void;
     }
 }