MDL: cosmetics on demo/demo-gmd2020-445.R

demo/demo-gmd2020-445.R

 ## Licence: LGPL version 2.1
-## Time-stamp: "Last modified 2021-01-05 17:45:17 delucia"
+## Time-stamp: "Last modified 2021-01-05 17:57:53 delucia"
 
-cat(":: To retrieve and run the code used in the preprint 'gmd2020-445', \n:: please follow the instructions on <https://git.gfz-potsdam.de/delucia/gmd2020-445>")
+cat("\n:: To retrieve and run the code used in the preprint 'gmd2020-445', \n:: please follow the instructions on <https://git.gfz-potsdam.de/delucia/gmd2020-445> \n:: copying this URL to your browser\n")