Added link to James' Parco paper

data/talks.yaml

@@ -100,6 +100,8 @@ cards:
     links:
       - href: "ParCo_2017_Bologna_Talk.pdf"
         name: Slides
+      - href: "https://arxiv.org/abs/1804.06231"
+        name: Paper
 
   - meeting: UK National Astronomy Meeting
     location: Hull, UK