Update README

Author: marcelstoer

README.md

@@ -4,8 +4,8 @@
 [![ThingPulse logo](https://thingpulse.com/assets/ThingPulse-w300.svg)](https://thingpulse.com)
 
 
-This code works best with the NodeMCU V2 and an 0.96" OLED display.
-To get you up and running in no time we created a kit which contains all the necessary parts including a custom PCB to connect display and WiFi chip:
+This code works best with the NodeMCU V2 ESP8266 module and an 0.96" OLED display.
+To get you up and running in no time we created a kit which contains all the necessary parts:
 [https://thingpulse.com/product/esp8266-iot-electronics-starter-kit-weatherstation-planespotter-worldclock/](https://thingpulse.com/product/esp8266-iot-electronics-starter-kit-weatherstation-planespotter-worldclock/)
 
 By buying this and [other kits](https://thingpulse.com/shop/) from us you are funding maintenance and  development of this library. Thank you!
@@ -52,9 +52,10 @@ If you are using the PlatformIO environment for building
 * **NTP Client**: a NTP based time class written by Fabrice Weinberg
 * **OpenWeatherMap Client**: A REST client for the OpenWeatherMap.com service, providing weather information
 * **Aeris Client**: Client for the service provided by aerisweather.com. Fully functional initial version. After the Wunderground incident (see [upgrade notes](#upgrade-notes)) we first targeted Aeris before we settled with OpenWeatherMap. This code is unmaintained but will remain part of this library for the time being.
-* **Wunderground Client - DEPRECATED**: fetches current weather and forecast from wunderground.com. Please note: Wunderground stopped their free tier service and previous demos are now using the OpenWeatherMap client
+* **Wunderground Client - DEPRECATED**: fetches current weather and forecast from wunderground.com. Please note: Wunderground stopped their free tier service and previous demos are now using the OpenWeatherMap client.
 * **Thingspeak Client**: fetches data from Thingspeak which you might have collected with another sensor node and posted there.
 * **Astronomy**: algorithms to calculate current lunar phase and illumination.
+* **SunMoonCalc**: a calculator for sun and moon properties for a given date & time and location. This implementation is port of a [Java class by T. Alonso Albi](http://conga.oan.es/~alonso/doku.php?id=blog:sun_moon_position) from OAN (Spain).
 
 ## Why Weather Station as a library?