v1.0.0 — Initial variogram tutorial

## What’s in this release

- Initial public tutorial introducing semivariograms and spatial dependence.

## How to view (live)

- https://parker-group.github.io/variogram\_tutorial1/

## How to run locally

1) install.packages(c('sp','gstat','sf','ggplot2','rmarkdown'))

2) rmarkdown::render('variogram_tutorial1.rmd', output_format='html_document', output_file='index.html')

## Datasets

- (none; or describe if you added one)

## Changes since last release

- N/A (first release)