Fixed indentation in C# sample

website/index/samples/sample.csharp.txt

@@ -12,7 +12,7 @@ namespace VS
 	class Program
 	{
 		static void Main(string[] args)
-    		{
+		{
 			bool isPrime = true;
 			Console.WriteLine("Prime Numbers : ");
 			for (int i = 2; i <= 100; i++)