v1.6.10.1 docs(vignette): add missing authors in vignettes

DESCRIPTION

 Package: airGR
 Type: Package
 Title: Suite of GR Hydrological Models for Precipitation-Runoff Modelling
-Version: 1.6.10.0
+Version: 1.6.10.1
 Date: 2021-01-28
 Authors@R: c(
   person("Laurent", "Coron", role = c("aut", "trl"), comment = c(ORCID = "0000-0002-1503-6204")),

NEWS.md

@@ -2,12 +2,13 @@
 
 
 
-### 1.6.10.0 Release Notes (2021-01-28)
+### 1.6.10.1 Release Notes (2021-01-28)
 
 #### New features
 
 - Added a section 'param_optim' vignette to explain how to manage with multiobjective optimization using the 'CaRamel' package. ([#61](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/61))
 
+
 #### Major user-visible changes
 
 - `Imax()` now returns an error message when `IndPeriod_Run` doesn't select 24 hours by day, instead of `numeric(0)`. ([#92](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/92))

vignettes/V01_get_started.Rmd

 ---
 title: "Get Started with airGR"
+author: "Guillaume Thirel, Olivier Delaigue, Laurent Coron"
 bibliography: V00_airgr_ref.bib
 output: rmarkdown::html_vignette
 vignette: >

vignettes/V02.2_param_mcmc.Rmd

 ---
 title: "Parameter estimation within a Bayesian MCMC framework"
+author: "François Bourgin"
 output: rmarkdown::html_vignette
 vignette: >
   %\VignetteEngine{knitr::rmarkdown}

vignettes/V03_param_sets_GR4J.Rmd

 ---
 title: "Generalist parameter sets for the GR4J model"
+author: "Olivier Delaigue, Guillaume Thirel"
 bibliography: V00_airgr_ref.bib
 output: rmarkdown::html_vignette
 vignette: >

vignettes/V04_cemaneige_hysteresis.Rmd

 ---
 title: "Using satellite snow cover area data for calibrating and improving CemaNeige"
+author: "Guillaume Thirel, Olivier Delaigue"
 bibliography: V00_airgr_ref.bib
 output: rmarkdown::html_vignette
 vignette: >