Fix copyright string

Author: Alec Delaney

docs/conf.py

@@ -79,7 +79,7 @@
 # General information about the project.
 project = "Adafruit's DS3231 RTC Library"
 current_year = str(datetime.datetime.now().year)
-copyright = "2016, Philip Moyer"
+copyright = current_year + " Philip Moyer"
 author = "Philip Moyer"
 
 # The version info for the project you're documenting, acts as replacement for