put preferred citation at end

Author: JonathanGregory

CITATION.cff

@@ -5,8 +5,6 @@ title: NetCDF Climate and Forecast (CF) Metadata Conventions
 version: '1.12'
 date-released: '2024-12-04'
 doi: 10.5281/zenodo.14275599
-preferred-citation:
-  type: article
 abstract: This document describes the CF conventions for climate and forecast metadata
   designed to promote the processing and sharing of files created with the netCDF
   Application Programmer Interface. The conventions define metadata that provide a
@@ -125,3 +123,5 @@ authors:
   family-names: Bartholomew
   given-names: Sadie L.
   orcid: 0000-0002-6180-3603
+preferred-citation:
+  type: article