added more logic for the server state diagram

Projekte/mdga/model/src/main/java/pp.mdga/server/GameStateMachine.java

@@ -1,10 +1,24 @@
 package pp.mdga.server;
 
-public class GameStateMachine extends ServerStateMachine{
+/**
+ * The GameStateMachine class represents the state machine for the game state.
+ */
+public class GameStateMachine extends ServerStateMachine {
+    /**
+     * Constructs a new GameStateMachine with the specified parent state and game logic.
+     *
+     * @param parent the parent state
+     * @param logic  the server game logic
+     */
     public GameStateMachine(ServerState parent, ServerGameLogic logic) {
         super(parent, logic);
     }
 
+    /**
+     * Returns the initial state of the state machine, which is DetermineStartPlayer.
+     *
+     * @return the initial state
+     */
     @Override
     public DetermineStartPlayer initialState() {
         return new DetermineStartPlayer(this, logic);