Milestones for this repo

[khaled-0]

Please add some kind of milestones or things that you guys are currently implementing in this extension.
That way new contributors won't be making commits to already planned stuffs

[JafarAkhondali]

Hey Khaled,
Thanks for your interest in the project, I've added a super minimal milestone for now, as I get really no time to spend on the project. For now I've initialized migration to MV3, however the connection to Persepolis is not working properly. The issue might be mostly related to Persepolis it self, however, we need proper debugging for this. If you can help, this would be really a good opportunity for fixing.

#57