diff --git a/README.md b/README.md
index 31cce4c..6e624bf 100644
--- a/README.md
+++ b/README.md
@@ -12,29 +12,19 @@ PM> Install-Package UblTr
 
 ## Serialize
 ```csharp
-var invoice = new InvoiceType(); 
-invoice.UUID = new Common.UUIDType() { Value = Guid.NewGuid().ToString() };
-invoice.UBLVersionID = new Common.UBLVersionIDType() { Value = "2.1" };
-invoice.CustomizationID = new Common.CustomizationIDType() { Value = "TR1.2" };
-invoice.ProfileID = new Common.ProfileIDType() { Value = "TEMELFATURA" };
-invoice.ID = new Common.IDType() { Value = "INV20200000000001" };
-invoice.CopyIndicator = new Common.CopyIndicatorType() { Value = false };
-
-var namespaces = new XmlSerializerNamespaces();
-namespaces.Add("cac", "urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2");
-namespaces.Add("cbc", "urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2");
-namespaces.Add("ccts", "urn:un:unece:uncefact:documentation:2");
-namespaces.Add("ds", "http://www.w3.org/2000/09/xmldsig#");
-namespaces.Add("ext", "urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2");
-namespaces.Add("ubltr", "urn:oasis:names:specification:ubl:schema:xsd:TurkishCustomizationExtensionComponents");
-namespaces.Add("qdt", "urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2");
-namespaces.Add("udt", "urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2");
-namespaces.Add("xades", "http://uri.etsi.org/01903/v1.3.2#");
-namespaces.Add("xsi", "http://www.w3.org/2001/XMLSchema-instance");
+var invoice = new InvoiceType
+{
+      UUID = new Common.UUIDType() { Value = Guid.NewGuid().ToString() },
+      UBLVersionID = new Common.UBLVersionIDType() { Value = "2.1" },
+      CustomizationID = new Common.CustomizationIDType() { Value = "TR1.2" },
+      ProfileID = new Common.ProfileIDType() { Value = "TEMELFATURA" },
+      ID = new Common.IDType() { Value = "INV20200000000001" },
+      CopyIndicator = new Common.CopyIndicatorType() { Value = false }
+};
 
 XmlSerializer xmlSerializer = new XmlSerializer(typeof(InvoiceType));
 TextWriter writer = new StreamWriter(@"C:\Temp\TestInvoice.xml"); //path to document
-xmlSerializer.Serialize(writer, invoice, namespaces);
+xmlSerializer.Serialize(writer, invoice, new UblTrNamespaces());
 
  ```