chore(es-bench): improve doc

demo/es-bench/date-locale.ts

@@ -1,40 +1,42 @@
 import {bench} from './bench.js';
 
 // 18,303,355/s with 44,597.25kb
-bench('date-now', () => {
+bench('date_now', () => {
   Date.now();
 });
 
 // 12,177,203/s with 51,511.3kb
-bench('new-date', () => {
+bench('new_date', () => {
   new Date();
 });
 
 // 677,056/s with 52,559.87kb
 const dateTimeFormat = Intl.DateTimeFormat('fa');
-bench('date-time-format-new', () => {
+bench('date_time_format_new', () => {
   dateTimeFormat.format(new Date());
 });
 
 // 9,770/s with 2,381,545.47kb
-bench('new-date-time-format-new', () => {
+bench('new_date_time_format_new', () => {
   const dateTimeFormat = Intl.DateTimeFormat('fa');
   dateTimeFormat.format(new Date());
 });
 
 // 766,025/s with 2,227,060.74kb
-bench('date-time-format-now', () => {
+bench('date_time_format_now', () => {
   dateTimeFormat.format(Date.now());
 });
 
 // 9,616/s with 1,784,446.98kb
-bench('new-date-time-format-now', () => {
+bench('new_date_time_format_now', () => {
   const dateTimeFormat = Intl.DateTimeFormat('fa');
   dateTimeFormat.format(Date.now());
 });
 
 // 757,297/s with 1,626,062.85kb
-bench('to-locale-date-string', () => {
+bench('to_locale_date_string', () => {
   const time = Date.now();
   new Date(time).toLocaleDateString('fa');
 });
+
+globalThis.document?.body.append(' Done. Check the console.');