[core] Improve docs on queryProfile, close #2460

mirai-core-api/src/commonMain/kotlin/IMirai.kt

@@ -198,6 +198,8 @@ public interface IMirai : LowLevelApiAccessor {
     /**
      * 查询某个用户的信息
      *
+     * 此函数不会缓存信息. 每次调用此函数都会向服务器查询新信息.
+     *
      * @since 2.1
      */
     public suspend fun queryProfile(bot: Bot, targetId: Long): UserProfile

mirai-core-api/src/commonMain/kotlin/contact/User.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2021 Mamoe Technologies and contributors.
+ * Copyright 2019-2022 Mamoe Technologies and contributors.
  *
  * 此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
  * Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
@@ -87,7 +87,9 @@ public interface User : Contact, UserOrBot, CoroutineScope {
     public override fun nudge(): UserNudge
 
     /**
-     * 查询用户信息
+     * 查询用户信息.
+     *
+     * 此函数不会缓存信息. 每次调用此函数都会向服务器查询新信息.
      *
      * @since 2.1
      */