add to controller and helper

app/controllers/admin/tags_controller.rb

@@ -17,12 +17,14 @@ module Admin
       authorize @tag, :show?
 
       @time_period = report_range
+      @action_logs = Admin::ActionLogFilter.new(action_type: :update_tag).results.limit(5)
     end
 
     def update
       authorize @tag, :update?
 
       if @tag.update(tag_params.merge(reviewed_at: Time.now.utc))
+        log_action :update, @tag
         redirect_to admin_tag_path(@tag.id), notice: I18n.t('admin.tags.updated_msg')
       else
         @time_period = report_range

app/helpers/admin/action_logs_helper.rb

@@ -37,6 +37,8 @@ module Admin::ActionLogsHelper
       end
     when 'Relay'
       link_to log.human_identifier, admin_relays_path
+    when 'Tag'
+      link_to log.human_identifier, admin_tags_path
     end
   end