Turn and Check markers.

Shogi.UI/Pages/Play/GameBoard/PlayerName.razor

@@ -1,7 +1,14 @@
 <p style="margin: 0">
 	@if (IsTurn)
 	{
-		<span>*&nbsp;</span>
+		<span class="turn-marker" title="Shows which player is next to move a piece.">Turn</span>
+		<span>&nbsp;</span>
+	}
+
+	@if (InCheck)
+	{
+		<span class="check-marker" title="King is in danger!">Check</span>
+		<span>&nbsp;</span>
 	}
 
 	@if (string.IsNullOrEmpty(Name))
@@ -17,5 +24,6 @@
 
 @code {
 	[Parameter][EditorRequired] public bool IsTurn { get; set; }
+	[Parameter][EditorRequired] public bool InCheck { get; set; }
 	[Parameter][EditorRequired] public string Name { get; set; } = string.Empty;
 }