From slack 8 Nov:

Just an idea but could the GitHub have a table listing all 32 local authorities as rows, and then columns for an expected minimum set of open data sets, eg School Catchment, Library locations, Recycling center locations, Planning Applications, etc A tick can be placed where the row/column intersect that links to the data location url if it's available. Would be an easy way to see at a glance which local authorities provide which information and also show what is missing.