Add Token OR example to Drupal internal help page

Problem/Motivation

It would be nice to have example from token_or project page also in Drupal internal help page.

Steps to reproduce

Proposed resolution

Add example how to use token_or module to Drupal internal help page.

[node:field_og_image:entity:url|node:field_header_image:entity:url|"https://www.drupal.org/files/drupal-wordmark.png"]

Remaining tasks

User interface changes

API changes

Data model changes