Implement many more nodes

Adds these new styling and formatting nodes
* strike
* highlight
* linebreaks
* pagebreaks
* Hyperlinks

lib/notare/nodes/hyperlink.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Notare
+  module Nodes
+    class Hyperlink < Base
+      attr_reader :url, :rid, :runs
+
+      def initialize(url:, rid:)
+        super()
+        @url = url
+        @rid = rid
+        @runs = []
+      end
+
+      def add_run(run)
+        @runs << run
+      end
+    end
+  end
+end