Add documentation for using afform in WordPress shortcodes

See merge request documentation/docs/sysadmin!325

Add documentation for using afform in WordPress shortcodes, see dev/report#82

add details on shortcode mode

See merge request documentation/docs/sysadmin!323

update based on comments on documentation/docs/sysadmin!323

Fix wrong token in recently committed update

See merge request documentation/docs/sysadmin!319

Fix table markdown

See merge request documentation/docs/sysadmin!320

Suggest removing reference to extension

See merge request documentation/docs/sysadmin!321

Add comments about changes to  tokens

See merge request documentation/docs/sysadmin!318

Bump upgrade version numbers

See merge request documentation/docs/sysadmin!316

extensions/stripe#337 Fix webhook URL docs for WP

See merge request documentation/docs/sysadmin!317