[tor-mirrors] mirror list update

[Harmony]

Hi everyone,

As you may have noticed, the mirror list has not been updated for some
time. I just wanted to reassure you that things should be back to normal
shortly: we will start by manually updating the list with changes from
the last two months, then at some point a new and more efficient
automated system should be deployed. The time and resources you are
volunteering will not go to waste.

Thank you all for running mirrors!