Notes for extensions

[lavigor]

I would like to add a feature-request: notes
It would be great if it would be possible to save a note for each extension, small hints about the usage, own code changes or other important things related to the installed extension.

https://www.phpbb.com/community/viewtopic.php?p=13805271#p13805271
Suggestion by Holger on phpbb.com.

[Galixte]

Very nice idea.