added comments and organized project files

Assets/Scripts/Game/InfiniteScroll.cs

@@ -0,0 +1,22 @@
+using UnityEngine;
+
+public class InfiniteScroll : MonoBehaviour
+{
+    public float speed;
+    public float start;
+    public float end;
+
+    private void Update() // Moves the background
+    {
+        if (transform.position.x > end)
+        {
+            transform.position = new Vector3(start, transform.position.y, transform.position.z);
+        }
+        else if (transform.position.x < start)
+        {
+            transform.position = new Vector3(end, transform.position.y, transform.position.z);
+        }
+
+        transform.position += speed * Time.deltaTime * Vector3.right;
+    }
+}