Incorporate reproducible data-preparation documentation

[carlhiggs]

To date, I have been documenting data preparation and other development aspects in a One Note notebook. Additionally, I have been conducting these somewhat ad hoc while experimenting --- e.g. using QGIS interactively for data filtering/joining and tippecanoe at command line to generate pmtiles using the resulting data.

However, this of course is not ideal and means that some aspects --- like using tippecanoe to generate vector tile data referenced in data stories --- are not adequately documented publicly, and should processes need to be reproduced they will need to be done manually.

Moving forwards, I will be progressively documenting the process in a Quarto markdown document (.qmd file) in the data-preparation folder. R will be used to read/transform/save data, and use of additional command line utilities like felt/tippecanoe will be either described or ideally automated in that process too. The .qmd file will be rendered as a GitHub-flavoured markdown (.md) document, so that the processes used for preparing data are documented in this repository too.

The plan is to eventually transfer/consolidate the core notes from the private OneNote document related to data-prearation that I have used while developing this platform into the data-preparation document.

See the current state of the rendered data-preparation markdown document here:
https://github.com/jibeproject/jibe-vis/blob/main/data-preparation/JIBE-vis-data-preparation-R.md

This issue may be closed when historical data preparation activities (eg using QGIS and tippecanoe) have been fully documented and adapted as a reproducible workflow.

[carlhiggs]

see:
7aaa81e
bb7a2c8
6260603
etc

In future commits related to this, I'll aim to tag this issue