Add current year to copyright message in RTD

Refs NOAA-EMC#2395

docs/source/conf.py

@@ -13,12 +13,13 @@
 import os
 import sys
 sys.path.insert(0, os.path.abspath('.'))
-
+from datetime import datetime
 
 # -- Project information -----------------------------------------------------
 
 project = 'Global-workflow'
-copyright = '2015- NOAA/NWS/NCEP/EMC'
+year = datetime.now().year
+copyright = f"2015-{year} NOAA/NWS/NCEP/EMC, Kate Friedman, Walter Kolczynski, Rahul Mahajan, Lin Gan"
 author = 'Kate Friedman, Walter Kolczynski, Rahul Mahajan, Lin Gan'
 
 # The full version, including alpha/beta/rc tags