Update PersonModel.cs

Author: moattarwork

src/LittleBlocks.Excel.SampleApp/PersonModel.cs

@@ -1,5 +1,5 @@
 // This software is part of the LittleBlocks.Excel Library
-// Copyright (C) 2018 LittleBlocks
+// Copyright (C) 2018 Little Blocks
 // 
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU Affero General Public License as published by
@@ -33,4 +33,4 @@ internal class PersonModel
         public int? CertificationId { get; set; }
         public int? CustomRowNumber { get; set; }
     }
-}
+}