Provide examples as vignettes

[jamesmbaazam]

The examples provided here in a separate repo (https://github.com/HRDAG/verdata-examples) should be properly linked to this repository. One way to do that would be through package vignettes [See the vignettes section of the R Packages book]. To take this even further, it might be better to set up a website for this repository where the vignettes can be accessed as Articles. See the website chapter of the R Packages book.

I see there is a related issue here HRDAG/verdata-examples#2 to convert the examples to a human-readable format. I will leave this to the authors' discretion.

This issue is with reference to the JOSS review here openjournals/joss-reviews#5844

[thegargiulian]

See suggestion in #30 to setup pkgdown integration when this/the examples repo is turned into a website