Update Welcome Book + fix typo in cubby TP command

Author: 4Ply

src/main/kotlin/org/trackedout/citadel/commands/CubbyManagementCommand.kt

@@ -71,7 +71,7 @@ class CubbyManagementCommand(
     }
 
     @Subcommand("cubby tp")
-    @Description("Teleport a cubby")
+    @Description("Teleport to a player's cubby")
     @CommandCompletion("@dbPlayers")
     fun teleportToCubby(source: CommandSender, @Optional targetPlayer: String?) {
         val world = plugin.server.worlds.find { it.name == "world" } ?: throw IllegalArgumentException("World not found")

src/main/kotlin/org/trackedout/citadel/commands/ShowBookUI.kt

@@ -46,7 +46,7 @@ fun showBookUI(
        Run modes:
 
        <aqua>Competitive:</aqua>
-Limited shards, standard rules, currently closed.
+Limited shards, standard rules, and new content!
 
        <green>Practice:</green>
 Infinite runs, open access to all cards.