small fixes

Assets/Station46/Runtime/Puzzle A/SymbolButton.cs

@@ -0,0 +1,13 @@
+using UnityEngine;
+
+namespace EscapeRoomEngine.Desert.Runtime.Puzzle_A
+{
+    /// <summary>
+    /// A <see cref="HoloButton"/> that includes the number of its assigned symbol.
+    /// </summary>
+    public class SymbolButton : HoloButton
+    {
+        [Tooltip("The number of the symbol assigned to this button.")]
+        public int symbolNumber;
+    }
+}