Steps to reproduce:
- go to standard documentation page about webhooks;
- try to create new webhook from scratch.
- it is not enough information for that;
- some information is just wrong or inaccurate.
- to have a manual that contains a full and correct information for new webhook creation.
(The specific complaints will be below in comments. I'm workiing with Zabbix v5.0 LTS; but my notes, probably, could be applied for newer version also – 5.2)