I've written a Python script to migrate issues. It's at github.com/ttencate/sf2github .
I am not sure there is an easy way. I would try the GitHub Issues API and try to move those myself. In fact if you search GitHub, you might find a gist or repository that has a ready made solution that uses the GitHub API.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.