Update README

README.md

@@ -69,9 +69,9 @@ subscribe<FriendMessageEvent>{
 
 ## 使用方法
 ### 要求
-- Kotlin 1.3+
+  - Kotlin 1.3+
 #### 用于 JVM 平台
-- Java 8
+ - Java 8
 ## 插件开发
 ``` text
     to be continued

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/Message.kt

@@ -111,7 +111,7 @@ data class MessageChain(
         val list: MutableList<Message>
 ) : Message(), Iterable<Message> {
     constructor() : this(mutableListOf())
-    constructor(vararg messages: Message) : this(mutableListOf(*messages))
+    constructor(vararg messages: Message) : this(messages.toMutableList())
     constructor(messages: Iterable<Message>) : this(messages.toMutableList())
 
     val size: Int = list.size