* replace deprecated flag with new flag
* rework liquid versioning in article
* update flag descriptions to latest
* fix table formatting
* more table formatting
* Apply suggestions from code review
Co-authored-by: Andrew Eisenberg <aeisenberg@github.com>
* address latest review comments
* version new flag for GHES 3.1+ only
* fix list numbeting
Co-authored-by: Andrew Eisenberg <aeisenberg@github.com>