Added credit for dragdroptouch in FAQ

_about/faq.md

@@ -44,3 +44,4 @@ A bunch of stuff, and we have a running list in the [Issues on GitLab](https://g
 * Modules are drawn largely from [Democratic Mediums](http://democraticmediums.info) (CC-BY)
 * Icons are from [Tabler](https://github.com/tabler/tabler-icons) (MIT License)
 * Database runs on [Stein](https://steinhq.com/) (MIT License), using [this Google Doc](https://docs.google.com/spreadsheets/d/12IgsMWZNzPv2nS7ksU6CUozcS6YYwRn9O1iIXKat3V4/edit?usp=sharing)
+* Modules work on mobile thanks to [dragdroptouch](https://github.com/Bernardo-Castilho/dragdroptouch) by Bernardo Castilho (MIT License)