R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'spNetwork'

spNetwork::KNetworkFunctions |  | Network k Functions | HTML | source | R code
spNetwork::NKDE |  | Network Kernel Density Estimate | HTML | source | R code
spNetwork::NetworkBuilding |  | Building graphs | HTML | source | R code
spNetwork::SpatialWeightMatrices |  | Spatial Weight Matrices | HTML | source | R code
spNetwork::TNKDE |  | Temporal Network Kernel Density Estimate | HTML | source | R code