Launching the Rust Foundation Maintainers Fund

If you want to financially support the development of Rust, please consider donating to the Rust Foundation Maintainers Fund. A few months ago, the Rust Foundation announced the Rust Foundation Maintainers Fund (RFMF). Since then, the Rust Project has been closely cooperating with the Rust Foundation to determine how exactly this fund will be used to support Rust maintainers. This resulted in the acceptance of RFC #3931 , which established the Funding team and the Maintainer in Residence program. The primar