How Can I Jump, with my FPS Player

 using UnityEngine;
 using System.Collections;
 
 public class PlayerControl : MonoBehaviour
 {
     public float moveSpeed = 10;
     public float gravity = 10;
     public float jumpHeight = 5;
     
     
     void Awake()
     {
         rigidbody.freezeRotation = true;
         Screen.lockCursor = true;
     }
     
     
     void FixedUpdate()
     {
         float h = Input.GetAxis ("Horizontal");
         float v = Input.GetAxis ("Vertical");
         
         Vector3 playerMove = transform.right * h + transform.forward * v;
         rigidbody.velocity = playerMove * moveSpeed;
     }
 }