give some hint about update endTime manually

Author: lgh06

packages/helper/transRes.mjs

@@ -109,6 +109,7 @@ let trans = {
       Minimum interval between two tasks is 10 minutes.":
   "注意：一个用户可以创建最多5个任务，每个任务最长持续<b>7天</b>（若点数大于80，则可持续<b>30天</b>）。\
       两个任务之间的最小间隔为10分钟。",
+  "Notice: You can update a specific task's end time manually, before it will be expired. No need to create a new task.": "注意：在任务即将过期前，您可以手动更新一个任务的结束时间，无需创建新任务。",
   "Create Now": "立即创建",
   "Success. you will be redirected to task list page.\n\
 Also, you can close our page, your task will keep running until ":"成功，将跳转到任务列表页面。\n\

packages/web/src/pages/task/edit_simp.tsx

@@ -333,6 +333,8 @@ Also, you can close our page, your task will keep running until `) + taskDetail.
     <div {...innerHTML(t('Notice: One user can create max 5 tasks, and lasts max <b>7 days</b> (<b>30 days</b> if your points > 80) per task.\
       Minimum interval between two tasks is 10 minutes.'))}>
     </div>
+    <div {...innerHTML(t(`Notice: You can update a specific task's end time manually, before it will be expired. No need to create a new task.`))}>
+    </div>
     {
   router && router.query.id ? null :  <div>
     <span {...innerHTML(t('Notice: Simple Mode is only suitable for monitor <b>public web pages</b>,\