Finish documention until someone change something

src/main.cpp

@@ -1,3 +1,18 @@
+/**
+ * @file main.cpp
+ * @author Alexander Klein (alex@kleiax.de)
+ * @brief The main file.
+ * 
+ * Sets up Network stuff, PS3-Controller, Menu and Lcd
+ * Handles Controller Input
+ * 
+ * @version 0.1
+ * @date 2022-02-15
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+
 #include <Arduino.h>
 #include <Ps3Controller.h>
 #include <iostream>
@@ -42,7 +57,7 @@ void setup() {
     Network::connectWifi();
     Network::setupMQTT();
     Network::checkMQTT();
-    DebugMqtt::init(Network::getMqtttClient(), Loglevel::debug);
+    DebugMqtt::init(Network::getMqttClient(), Loglevel::debug);
 
     std::cout << "Activate additional output via MQTT..." << std::endl;
     debugMqtt = new DebugMqtt("Console");