automatically move wp.yml to the _data directory

assets/RePEc/rdf2yml.py

@@ -88,5 +88,11 @@ for key in sorted(wps, reverse=True):
     yml.write('\n')
 
 yml.close()
+
+wp_data_file = "../../_data/wp.yml"
+if os.path.exists(wp_data_file):
+    os.remove(wp_data_file)
+os.rename("wp.yml", wp_data_file)
+
 print('Done writing wp.yml')