Add builder pattern for paragraph, lists, tables

lib/ezdoc/package.rb

@@ -14,13 +14,19 @@ module Ezdoc
         zipfile.get_output_stream("_rels/.rels") { |f| f.write(relationships_xml) }
         zipfile.get_output_stream("word/_rels/document.xml.rels") { |f| f.write(document_relationships_xml) }
         zipfile.get_output_stream("word/document.xml") { |f| f.write(document_xml) }
+
+        zipfile.get_output_stream("word/numbering.xml") { |f| f.write(numbering_xml) } if lists?
       end
     end
 
     private
 
+    def lists?
+      @document.lists.any?
+    end
+
     def content_types_xml
-      Xml::ContentTypes.new.to_xml
+      Xml::ContentTypes.new(has_numbering: lists?).to_xml
     end
 
     def relationships_xml
@@ -28,11 +34,15 @@ module Ezdoc
     end
 
     def document_relationships_xml
-      Xml::DocumentRelationships.new.to_xml
+      Xml::DocumentRelationships.new(has_numbering: lists?).to_xml
     end
 
     def document_xml
-      Xml::DocumentXml.new(@document.content).to_xml
+      Xml::DocumentXml.new(@document.nodes).to_xml
+    end
+
+    def numbering_xml
+      Xml::Numbering.new(@document.lists).to_xml
     end
   end
 end