Help with advanced jump

Hello i use moving from tutorial

{
public float speed;

void FixedUpdate ()
{
	float moveHorizontal = Input.GetAxis("Horizontal");
	float moveVertical = Input.GetAxis("Vertical");

	Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

	rigidbody.AddForce(movement * speed * Time.deltaTime);
}

}

now how can i add little real jump with gravity and in air i can controll move this jump left right…

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