Added a field for people's expertise on the contact page.

I am trying to add some "expertise" field to the list of people. Would you have any advice on making this look better than it does here ?

data/contact.yaml

@@ -8,21 +8,22 @@ people: [
   {
     name: Dr. Pedro Gonnet,
     role: Project PI (CompSci),
-    affil: "School of Engineering & Computer Science, Durham University"
+    affil: "ECS, Durham University"
   },
   {
     name: Dr. Aidan Chalk,
-    role: "Developer (Parallelization, GPU)",
-    affil: "STFC Daresbury Laboratory, Warrington"
+    role: "Developer",
+    affil: "STFC Daresbury Laboratory"
   },
   {
     name: Mr. James S. Willis,
-    role: "Developer (Vectorization, MPI)",
+    role: "Developer",
     affil: "ICC, Durham University",
+    expertise: "Parallelization, Vectorization"
   },
   {
     name: Dr. Peter Draper,
-    role: "Developer (Parallelization, MPI, domain decomposition)",
+    role: "Developer",
     affil: "ICC, Durham University",
   },
   {
@@ -33,8 +34,8 @@ people: [
   },
   {
     name: Dr. Bert Vandenbroucke,
-    role: "Developer (Astrophysics, Hydrodynamics)",
-    affil: "School of Physics & Astronomy, Univeristy of St Andrews",
+    role: "Developer",
+    affil: "University of St Andrews",
     href: "http://www-star.st-and.ac.uk/~bv7/"
   },
   {