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+++ b/README.md
@@ -1,6 +1,6 @@
 # CO<sub>2</sub> Ampel
 
-*CO<sub>2</sub> Ampel* is an open-source project, written in C++ for ESP8266 or ESP32.
+*CO<sub>2</sub> Ampel* is an open-source project, written in C++ for [ESP8266](https://en.wikipedia.org/wiki/ESP8266) or [ESP32](https://en.wikipedia.org/wiki/ESP32).
 
 It measures the current CO<sub>2</sub> concentration (in ppm), and displays it on an LED ring.
 
@@ -12,11 +12,11 @@ The *CO<sub>2</sub> Ampel* can:
 
 * Display CO2 concentration on LED ring.
 * Allow calibration.
-* Get current time over NTP
-* Send data over MQTT.
-* Send data over LoRaWAN.
+* Get current time over [NTP](https://en.wikipedia.org/wiki/Network_Time_Protocol)
+* Send data over [MQTT](https://en.wikipedia.org/wiki/MQTT).
+* Send data over [LoRaWAN](https://en.wikipedia.org/wiki/LoRa#LoRaWAN).
 * Display measurements and configuration on a small website.
-* Log data to a CSV file, directly on the ESP flash memory.
+* Log data to a [CSV](https://en.wikipedia.org/wiki/Comma-separated_values) file, directly on the ESP flash memory.
 
 ## Hardware Requirements
 
@@ -85,5 +85,4 @@ make upload board=esp32 && make monitor # For ESP32
 ## License
 
 Copyright © 2021, [HfT Stuttgart](https://www.hft-stuttgart.de/)
-
 [GPLv3](https://choosealicense.com/licenses/gpl-3.0/)