Add @bmeurer to WG

PR-URL: #142
Reviewed-By: Kunal Pathak <kunal.pathak@microsoft.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Gareth Ellis <gareth.ellis@uk.ibm.com>

Author: bmeurer

README.md

@@ -40,4 +40,5 @@ https://github.com/nodejs/benchmarking/blob/master/benchmarks/README.md
   + Gareth Ellis (@gareth-ellis)
   + Wayne Andrews (@CurryKitten)
   + Kyle Farnung (@kfarnung)
-  + Kunal Pathak (@kunalspathak)
+  + Kunal Pathak (@kunalspathak)
+  + Benedikt Meurer (@bmeurer)