Rename SalesOrderID to ID

Author: corny

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    xrechnung (0.6.0)
+    xrechnung (0.6.1)
       builder (~> 3.2)
 
 GEM

lib/xrechnung.rb

@@ -324,7 +324,7 @@ def to_xml(indent: 2, target: "")
               xml.cbc :ID, purchase_order_reference
             end
             unless self.class.members[:sales_order_reference].optional && sales_order_reference.nil?
-              xml.cbc :SalesOrderID, sales_order_reference
+              xml.cbc :ID, sales_order_reference
             end
           end
         end

lib/xrechnung/version.rb

@@ -1,3 +1,3 @@
 module Xrechnung
-  VERSION = "0.6.0".freeze
+  VERSION = "0.6.1".freeze
 end