HELP Contexts for APPS

Is your feature request related to a problem? Please describe.

Nextcloud prides itself on its many apps in the Appstore.
In fact, the variety of apps is very impressive and users benefit from it as well. On the other hand, there is practically a detailed description for very few apps; if a description is available, it is usually known to the administrator of the cloud (because he also got familiar with it during the installation of the app). But many apps in the cloud itself, don't even have a short explanation of how the apps work and many users are frustrated about it.

Describe the solution you'd like

To greatly improve this situation, one might consider that developers are encouraged to integrate a help context into the cloud when developing apps.
(Nextcloud could also make this mandatory for developers).
This would dramatically improve the user experience in the app, in the cloud for the users and would have an impact on the developers and the reputation of Nextcloud.

Describe alternatives you've considered
This app context-help could also be implemented via web links to a general manual page.

The issue proposes adding help contexts to Nextcloud apps, either in the cloud or through links to general manual pages. No files, tests, entry points, or acceptance criteria are identified; first define the integration approach and how app help content will be supplied and verified.