Ask for ownership transfer of poly2tri crate

[virtualritz]

See https://crates.io/crates/poly2tri (hasn't been updated in seven years)
Repo is here: https://github.com/mitsuhiko/rust-poly2tri
Author can be reached via: armin.ronacher@active-4.com

[shuoli84]

Thanks for the advice. Will do that when this repo gets more adoption.