added NERC to team page

Author: axel-lauer

team.md

@@ -11,6 +11,7 @@ The [ESMValTool governance structure is described here](/assets/pdf/ESMValTool_G
 * Barcelona Supercomputing Center (BSC), Spain
 * Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Germany (Co-PI)
 * Met Office, United Kingdom (Co-PI)
+* Natural Environment Research Council (NERC), United Kingdom
 * Netherlands eScience Center (NLeSC), The Netherlands
 * Swedish Meteorological and Hydrological Institute (SMHI), Sweden