R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'voluModel'

voluModel::a_Introduction |  | 1. Introduction to `voluModel` | HTML | source | R code
voluModel::b_RasterProcessing |  | 2. Processing Raster Data | HTML | source | R code
voluModel::c_DataSampling |  | 3. Environmental Data Sampling | HTML | source | R code
voluModel::d_Visualization |  | 4. Visualization Tools | HTML | source | R code
voluModel::e_GLMWorkflow |  | 5. 3D Niche Modeling with the GLM Algorithm | HTML | source | R code