Update app.py

app.py

@@ -302,7 +302,7 @@ async def on_message(message):
             try:
                 with open(f"data/{guild_name}/{msgchannel_name}", "w") as f:
                     f.write("")
-                embed = discord.Embed(title="Success", description=f"History reset in <@{msgchannel.id}>")
+                embed = discord.Embed(title="Success", description=f"History reset in <#{msgchannel.id}>")
                 await message.reply(embed=embed)
                 return 0
             except: