docs: add basic information about screenshots
This will add some basic information on the newly landed screenshot support. I wasnt particularly involved into this, so my understanding is limited. Also I am not sure if this is the right spot, but we need to fix the whole documentation structure someday anyway ().
I would like to add same samples as well, put I want to make sure they are correct, first:
-
<upstream-git-root>/fastlane/metadata/android/en-us/phoneScreenshots/
(is fastlane part of the hierarchy?) -
<http-server>/repo/<package-id>/en-us/phoneScreenshots/
(i think this needs to be not the http-server, but the repo directory on the local machine tha generates the index? if both, upstream and local, information exist, which gets priority?) -
<fdroiddata>/metadata/<package-id>/en-us/phoneScreenshots/
(as far as i can tell this is not supported?)
As I said, I got my understanding from https://github.com/fastlane/fastlane/blob/1.109.0/supply/README.md#images-and-screenshots and https://gitlab.com/fdroid/fdroidserver/blob/master/fdroidserver/update.py#L554 , so it would be nice to have @eighthave or whoever worked on this comment here.
Also it would be nice if we plan to follow fastlane for other stuff like short description, changelogs etc. as well.