Some metrics have suboptimal names, so we should rename them. We should also switch from underscores to spaces, so we don't have to transform to get nice human-readable names and so we can easily match region names to the forms in canonical_data.countries.
Right now, our metrics are divided into the following groups:
- Content gap
- Editing
- Readers
- Regional unique devices
The main effect of the grouping is which TSV file the metric lives in; after T359699, the Google spreadsheets will mirror this arrangement, so it will become more important.
Suggested groups:
- Content (including content gap)
- Contribution
- Readership (including regional unique devices)