update README to newest MSRV

README.md

@@ -1,4 +1,4 @@
-# faux   [![Latest Version]][crates.io] [![rustc 1.56+]][Rust 1.56] [![docs]][api docs] ![][build]
+# faux   [![Latest Version]][crates.io] [![rustc 1.58+]][Rust 1.58] [![docs]][api docs] ![][build]
 
 A library to create [mocks] out of structs.
 
@@ -227,8 +227,8 @@ methods in structs.
 
 [Latest Version]: https://img.shields.io/crates/v/faux.svg
 [crates.io]: https://crates.io/crates/faux
-[rustc 1.56+]: https://img.shields.io/badge/rustc-1.56+-blue.svg
-[Rust 1.56]: https://blog.rust-lang.org/2021/10/21/Rust-1.56.0.html
+[rustc 1.58+]: https://img.shields.io/badge/rustc-1.58+-blue.svg
+[Rust 1.58]: https://blog.rust-lang.org/2022/01/13/Rust-1.58.0.html
 [Latest Version]: https://img.shields.io/crates/v/faux.svg
 [docs]: https://img.shields.io/badge/api-docs-blue.svg
 [api docs]: https://docs.rs/faux/