Add MSRV notice

Author: eldruin

docs/msrv.md

@@ -6,7 +6,7 @@ that may change in any new patch release.
 
 ## How the MSRV will be upgraded
 
-For `embedded-hal`, we do not consider upgrading the MSRV a strictly breaking change as defined by
+For this library, we do not consider upgrading the MSRV a strictly breaking change as defined by
 [SemVer](https://semver.org).
 
 We follow these rules when upgrading it:
@@ -23,8 +23,7 @@ For example:
 
 For a given `x.y.z` release, we may upgrade the MSRV on `x` and `y` releases but not on `z` releases.
 
-If your MSRV upgrade policy differs from this, you are advised to specify the
-`embedded-hal` dependency in your `Cargo.toml` accordingly.
+If your MSRV upgrade policy differs from this, you are advised to specify the dependency in your `Cargo.toml` accordingly.
 
 See the [Rust Embedded Working Group MSRV RFC](https://github.com/rust-embedded/wg/blob/master/rfcs/0523-msrv-2020.md)
 for more background information and reasoning.

embedded-hal-bus/README.md

@@ -1,9 +1,7 @@
 [![crates.io](https://img.shields.io/crates/d/embedded-hal-bus.svg)](https://crates.io/crates/embedded-hal-bus)
 [![crates.io](https://img.shields.io/crates/v/embedded-hal-bus.svg)](https://crates.io/crates/embedded-hal-bus)
 [![Documentation](https://docs.rs/embedded-hal-bus/badge.svg)](https://docs.rs/embedded-hal-bus)
-<!--
 ![Minimum Supported Rust Version](https://img.shields.io/badge/rustc-1.54+-blue.svg)
--->
 
 # `embedded-hal-bus`
 
@@ -26,12 +24,14 @@ This project is developed and maintained by the [HAL team][team].
 
 [API reference]: https://docs.rs/embedded-hal-bus
 
-<!--
 ## Minimum Supported Rust Version (MSRV)
 
+
 This crate is guaranteed to compile on stable Rust 1.54 and up. It *might*
 compile with older versions but that may change in any new patch release.
--->
+
+See [here](../docs/msrv.md) for details on how the MSRV may be upgraded.
+
 
 ## License