Author: David Woloszyn
MDL-83442 aiprovider_azureai: Correct help string URL
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d43cec5bb332aab9f9cb9e7ce8bcf8ee6021c0b7
http://github.com/moodle/moodle/commit/d43cec5bb332aab9f9cb9e7ce8bcf8ee6021c0b7
+ 4.5 en [endpoint_desc,aiprovider_azureai]