chore: add command description annotation

src/main/kotlin/cn/rtast/fancybot/commands/misc/ReactionCommand.kt

@@ -7,11 +7,13 @@
 
 package cn.rtast.fancybot.commands.misc
 
+import cn.rtast.fancybot.annotations.CommandDescription
 import cn.rtast.rob.entity.GroupMessage
 import cn.rtast.rob.enums.QQFace
 import cn.rtast.rob.util.BaseCommand
 import cn.rtast.rob.util.ob.OneBotListener
 
+@CommandDescription("让你的消息得到回应(reaction)!")
 class ReactionCommand : BaseCommand() {
     override val commandNames = listOf("reaction", "回应")