* Add difficulty adjustment api doc. Change fee tab to general tab. * Add block header examples. * Change tab orders. Add fees tabs. Change CPFP instructions to Transactions tab. * Reorder alphabetically. Fix typo.
* Add difficulty adjustment api doc. Change fee tab to general tab. * Add block header examples. * Change tab orders. Add fees tabs. Change CPFP instructions to Transactions tab. * Reorder alphabetically. Fix typo.