add some c++ doc

src/WifiManager.h

@@ -12,14 +12,39 @@ class WifiManager {
 public:
     WifiManager();
 
+    /**
+     * initialize the webserver
+     */
     void init();
 
+    /**
+     * handles new web requests and holds the webserver alive
+     * call as often as possible
+     */
     void holdAlive();
 
+    /**
+     * reads the max-wait-time out of eeprom
+     * @return max-wait-time in seconds
+     */
     int getWaitTime();
 
+    /**
+     * sets the last time when the pump was on
+     * @param lastPumpTime pump time in ms
+     */
     void setlastPumpTime(unsigned long lastPumpTime);
+
+    /**
+     * sets the last time of a water outage
+     * @param lastWaterOutage last wateroutage time in ms
+     */
     void setlastWaterOutage(unsigned long lastWaterOutage);
+
+    /**
+     * sets the duration of the last pump cycle
+     * @param lastPumpDuration duration in ms
+     */
     void setPumpDuration(unsigned long lastPumpDuration);
 
 private: