Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

09_Battle/csharp/Program.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Battle
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            new Game().Run();
+        }
+    }
+}