Add builder pattern for paragraph, lists, tables

lib/ezdoc/nodes/run.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module Ezdoc
+  module Nodes
+    class Run < Base
+      attr_reader :text, :bold, :italic, :underline
+
+      def initialize(text, bold: false, italic: false, underline: false)
+        super()
+        @text = text
+        @bold = bold
+        @italic = italic
+        @underline = underline
+      end
+    end
+  end
+end