Finish documention until someone change something

src/network.cpp

@@ -1,7 +1,7 @@
 /**
  * @file network.cpp
  * @author Alexander Klein (alex@kleiax.de)
- * @brief TODO: write some stuff
+ * @brief Contains the implementation of the ststic class Network
  * @version 0.1
  * @date 2021-12-14
  * 
@@ -86,6 +86,6 @@ void Network::checkMQTT() {
     mqtt_client->loop();
 }
 
-PubSubClient* Network::getMqtttClient() {
+PubSubClient* Network::getMqttClient() {
     return mqtt_client;
 }