update version number

Author: eeholmes

DESCRIPTION

@@ -1,13 +1,13 @@
 Package: atsalibrary
 Title: Packages, data and scripts for ATSA course and lab book
-Version: 1.5
+Version: 1.6
 Authors@R: c(
     person(c("Elizabeth", "Eli"), "Holmes", role = c("aut", "cre"), 
       email = "eli.holmes@noaa.gov"),
     person(c("Mark", "D."), "Scheuerell", role = "aut"),
     person(c("Eric", "J."), "Ward", role = "aut"))
 Maintainer: Elizabeth E. Holmes <eli.holmes@noaa.gov>
-Description: This package will load the needed packages and data files for the ATSA course material when students install from GitHub.
+Description: This package will load the needed packages and data files for the ATSA course material when students install.
 Depends: 
   R (>= 3.5.0),
   broom (>= 0.5.1),