Merge pull request #3576 from Mearman/topic/new/citizen-science

add citizen science topic

Author: smashwilson

topics/citizen-science/index.md

@@ -0,0 +1,8 @@
+---
+display_name: Citizen science
+short_description: Citizen science is a form of scientific research in which members of the public participate.
+topic: citizen-science
+wikipedia_url: https://en.wikipedia.org/wiki/Citizen_science
+---
+
+Citizen science is a form of scientific research in which members of the public participate. It is often used to describe scientific research conducted by amateur scientists, but it can also be used to describe scientific research conducted by professional scientists that involve members of the public.