You can configure distinct Help URLs and Description for each checklist section and the questions in the section. Help URLs enable your technicians to launch the associated web pages.

Tap the question mark icon as shown i the above screen shot at the checklist section level or at the question level. This opens the help URL in a new window based on browser settings. If no Help URL is configured, then the question mark icon is not displayed.

To know more, refer How to configure Help URL and Data Validation Rule.