* add verifying custom domain article and images * update intro * add notes to other articles * remove notes * add note about scope of verified domain * Update screenshots * Apply suggestions from code review Co-authored-by: Jules Parker <19994093+jules-p@users.noreply.github.com> Co-authored-by: Yoann Chaudet <yoannchaudet@github.com> Co-authored-by: Jules Parker <19994093+jules-p@users.noreply.github.com> Co-authored-by: jmarlena <6732600+jmarlena@users.noreply.github.com>