Add links to used open-source libraries.

README.md

@@ -26,6 +26,7 @@ Another cool feature is support for 3 Dallas DS18B20 temperature sensors, with t
 - [SmartConfig and WiFi setup](#smartconfig-and-wifi-setup)
 - [Log files](#log-files)
 - [Known issues](#known-issues)
+- [Used libraries](#Libraries-used-in-aquacontrol32)
 
 #### Aquacontrol32 dimming down YouTube video
 
@@ -154,6 +155,12 @@ Not really an issue but if your controller has a problem after flashing (no Wifi
 <br>Use this command to erase flash (FFat INCLUDED!) in Debian based Linux:
 <br>`~/Arduino/hardware/espressif/esp32/tools/esptool.py --port /dev/ttyUSBx erase_flash`
 
+#### Libraries used in aquacontrol32
+
+- [jQuery 3.4.1](https://code.jquery.com/jquery-3.4.1.js) which is [available under MIT license](https://jquery.org/license/).
+- [jCanvas 21.0.1](https://cdnjs.cloudflare.com/ajax/libs/jcanvas/21.0.1/min/jcanvas.min.js) which is [available under MIT license](https://github.com/caleb531/jcanvas/blob/master/LICENSE.txt).
+- [Google Roboto font](https://fonts.google.com/specimen/Roboto) which is [available under Apache2.0 license](https://www.apache.org/licenses/LICENSE-2.0.html).
+
 #### The test hardware
 
 <a href="https://user-images.githubusercontent.com/24290108/33763793-1df0fe98-dc12-11e7-82a5-853e5a1d07d1.JPG"><img src="https://user-images.githubusercontent.com/24290108/33763798-2385a69c-dc12-11e7-81c4-2429f2fb88fd.JPG" height="320" width="512" ></a>