Add documentation for VoteStartModule

src/content/docs/modules/VoteStartModule.md

@@ -0,0 +1,24 @@
+---
+title: VoteStartModule
+---
+`VoteStartModule` allows the players waiting in a game to choose when it starts. Upon joining, players' hotbars are automatically filled with items that, when interacted with, register the player's vote. Once at least half the players have voted, and the minimum player count is met, a countdown begins. If either of these conditions stops being met during the countdown, it is canceled. When the countdown reaches 0, the module will call `GameStartEvent`, change the game state to `INGAME`, and display a "GO!" title on the screen.
+
+:::caution
+This module is a replacement for [CountdownModule](../countdownmodule) and they should not be used together.
+:::
+
+## Usage
+Import the module:
+```kotlin
+import com.bluedragonmc.server.module.minigame.VoteStartModule
+```
+Use the module in your game's `initialize` function:
+```kotlin
+use(VoteStartModule(minPlayers = 2, countdownSeconds = 5))
+```
+To check if a player has voted to start, use `hasVoted`:
+```kotlin
+if (getModule<VoteStartModule>().hasVoted(player)) {
+    player.sendMessage("You have already voted for the game to start!")
+}
+```