Write vignette for azkit

[francisbarton]

Just an overview "Getting Started" vignette (azkit.qmd) to demonstrate core functionality and how the package can help with certain user tasks involving authentication and reading data from Azure storage.

Explore if pkgdown is compatible with Qurto vignettes.

Fran to author a vignette (development.qmd) on the development journey of the package.

Ideas for further vignettes ('Troubleshooting'? 'About Azure authentication'?) welcome.

[Lextuga007]

#131

• set up pkgdown
• overview "Getting Started" vignette (azkit.qmd) to demonstrate core functionality
• and how the package can help with certain user tasks involving authentication and
• reading data from Azure storage.
• compatible with Quarto
• expand to article 'Troubleshooting'
• expand to article 'About Azure authentication'

[Lextuga007]

Quarto is compatible but does require changes in gha to build on GitHub