v0.2.10.97 docs(man): review text in CalGR help pages

Resf #3

DESCRIPTION

 Package: airGRteaching
 Type: Package
 Title: Teaching Hydrological Modelling with the GR Rainfall-Runoff Models ('Shiny' Interface Included)
-Version: 0.2.10.96
+Version: 0.2.10.97
 Date: 2020-12-14
 Authors@R: c(
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),

man/CalGR.Rd

@@ -21,7 +21,7 @@ CalGR(PrepGR, CalCrit = c("NSE", "KGE", "KGE2", "RMSE"),
 
   \item{CalCrit}{[character] name of the objective function (must be one of \code{"NSE"}, \code{"KGE"}, \code{"KGE2"} or \code{"RMSE"})}
 
-  \item{WupPer}{(optional) [character] vector of 2 values to define the beginning and end of the warm-up period [\code{"YYYY-mm-dd"} or \code{"YYYY-mm-dd HH:MM:SS"}]}
+  \item{WupPer}{(optional) [character] vector of 2 values to define the beginning and end of the warm-up period [\code{"YYYY-mm-dd"} or \code{"YYYY-mm-dd HH:MM:SS"}]. See details}
 
   \item{CalPer}{[character] vector of 2 values to define the beginning and end of the calibration period [\code{"YYYY-mm-dd"} or \code{"YYYY-mm-dd HH:MM:SS"}]}