Pulls the lineage notes data from the PANGO designation GitHub: https://raw.githubusercontent.com/cov-lineages/pango-designation.
To provide the full lineage name, the *Description* column is searched for alias information based upon
the regular expression passed to the pattern parameter. If this parameter is set to NULL,
the alias search will be ignored and the full_name column will be excluded.
Usage
fetch_pango_notes(
url =
"https://raw.githubusercontent.com/cov-lineages/pango-designation/master/lineage_notes.txt",
pattern = "^([Aa]lias of)\\s?([A-Z\\.\\d]*)[,]?\\s?.*$",
description_col = "Description"
)