templates/crate/versions: Fix missing "model." prefix
templates/crate/versions: Fix missing "model." prefix

achanda/crates.io,Susurrus/crates.io,steveklabnik/crates.io,achanda/crates.io,achanda/crates.io,steveklabnik/crates.io,steveklabnik/crates.io,rust-lang/crates.io,Susurrus/crates.io,rust-lang/crates.io,rust-lang/crates.io,Susurrus/crates.io,Susurrus/crates.io,steveklabnik/crates.io,rust-lang/crates.io,achanda/crates.io