如何使链接不出现在discord.py响应中？

import discord

client = discord.Client()

@client.event
async def on_message(message):
    if message.author == client.user:
        return

    if "链接" in message.content:
        response = "这是一个链接：[点击这里](隐藏的链接)"
        await message.channel.send(response)

client.run('YOUR_TOKEN')