v0.2.3.1 minor typo revision in vignette

DESCRIPTION

 Package: airGRteaching
 Type: Package
 Title: Teaching Hydrological Modelling with the GR Rainfall-Runoff Models ('Shiny' Interface Included)
-Version: 0.2.3.0
-Date: 2018-05-22
+Version: 0.2.3.1
+Date: 2018-08-08
 Authors@R: c(person("Olivier", "Delaigue", role = c("aut", "cre"), email = "airGR@irstea.fr"), person("Laurent", "Coron", role = c("aut")), person("Pierre", "Brigode", role = c("aut")), person("Guillaume", "Thirel", role = c("ctb")))
 Depends: airGR (>= 1.0.9.43)
 Imports: dygraphs (>= 1.1.1.6), htmlwidgets (>= 1.2), markdown, plotrix, shiny (>= 1.1.0), shinyjs (>= 1.0), xts

NEWS

 ############# Release History of the airGRteaching Package
 
 
-## 0.2.3.0 Release Notes (2018-08-08)
+## 0.2.3.1 Release Notes (2018-08-08)
 
 	CRAN-compatibility updates
 		- now depends on the latest version (1.1.1.6) of the dygraphs package from CRAN (embeded dygraphs functions have been removed)

vignettes/get_started.rmd

 ---
-title: "Get Started with airGRteachning"
+title: "Get Started with airGRteaching"
 output: rmarkdown::html_vignette
 vignette: >
   %\VignetteEngine{knitr::rmarkdown}