First attempts with Doxygen

include/config.h

@@ -1,15 +1,36 @@
+/**
+ * \file
+ * \class Config
+ */
 #ifndef CONFIG_H
 #define CONFIG_H
 
 #ifndef VERSION
 //SEMVER style version
+/**
+ * \brief Version string. 
+ * Update as needed. Formatted as SEMVER style string.
+ * See https://semver.org/ for more information.
+ */
 #define VERSION          "0.4.5-Dev"
 #endif
 
+/**
+ * Set the default Serial baudrate in bits/seconds
+ */
 #define CONFIG_SERIAL_BAUDRATE  115200
 
+/**
+ * Pin ID of the output relay
+ */
 #define CONFIG_IO_RELAY         D1
+/**
+ * Pin ID of the DHT11 temperature sensor
+ */
 #define CONFIG_IO_DHT11         D2
 
+/**
+ * Interval at which the tempreature is sent in seconds
+ */
 #define CONFIG_TEMPERATURE_SEND_INTERVAL 60
 #endif