added readme and added an dependency

DESCRIPTION

@@ -5,6 +5,6 @@ Version: 1.0
 Date: 2015-02-16
 Author: Wietse Franssen
 Maintainer: Wietse Franssen <wietse.franssen@wur.nl>
-Depends: R (>= 3.0.0), ncdf4, fields, RColorBrewer, ggplot2, udunits2, scales
+Depends: R (>= 3.0.0), ncdf4, fields, RColorBrewer, ggplot2, udunits2, scales, labeling
 Description: Some usefull R-Functions
 License: GPL

README.md

+# How to install
+start R
+
+load the library called devtools
+'''library(devtools)'''
+install WFRTools:
+'''install_git("https://git.wur.nl/frans004/WFRTools.git")'''