refactor(Edit): add Finalizer region

EnvelopeGenerator.PdfEditor/Edit.cs

@@ -16,7 +16,6 @@ namespace EnvelopeGenerator.PdfEditor
         private readonly TOutputStream _outputStream;
         private readonly PdfReader _reader;
         private readonly PdfWriter _writer;
-        private bool _disposed = false;
 
         public Edit(TInputStream inputStream, TOutputStream outputStream)
         {
@@ -32,7 +31,9 @@ namespace EnvelopeGenerator.PdfEditor
             return new Edit<MemoryStream, MemoryStream>(new MemoryStream(documentBytes), new MemoryStream());
         }
 
-        // Finalizer
+        #region Finalizer
+        private bool _disposed = false;
+
         ~Edit()
         {
             // If Dispose is not called, clean up unmanaged resources
@@ -88,5 +89,6 @@ namespace EnvelopeGenerator.PdfEditor
             _disposed = true;
             GC.SuppressFinalize(this);
         }
+        #endregion
     }
 }