* Fix "bad output format" for `github-json` output
Signed-off-by: Steven Maude <git@stevenmaude.co.uk>
* Update formats in README
Signed-off-by: Steven Maude <git@stevenmaude.co.uk>
* Run `make lint-fix`
Signed-off-by: Steven Maude <git@stevenmaude.co.uk>