Astar_demo/Assets/PathWalker.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PathWalker : MonoBehaviour
{
    public List<Transform> pathNodes = new List<Transform>();
    public int curIndex = 0;
    void Update(){
        if(pathNodes.Count < 2){return;}
        if(curIndex < pathNodes.Count){

        if(Vector2.Distance(pathNodes[curIndex].position, transform.position) > 0.1f){
            //Move Towards node
            transform.position += (pathNodes[curIndex].position - transform.position).normalized * Time.deltaTime * 2f;
        }else{
            curIndex++;
        }
        }
    }
}