Editors can create/edit content and publish content. They cannot unlock content checked out to others, and they cannot invite users to a tome or otherwise manage users.
Ensure your page has the following code pasted near the bottom, before the closing 'body' tag.
Copy this code and place it where you want the help icon to appear in your page.
Your help link will appear as the icon below. Click it to verify how the help content will look.
Place a QR code on your product or machinery to let a user easily retrieve the user guide documentation for it.
Right-click and 'copy'