Update docs.

Author: Cryptjar

CHANGELOG.md

@@ -13,7 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Changes since [`v0.3.3`](#033---2023-02-02).
 
-### Changed
+### BREAKING
 
 - Upgraded `ufmt` from `0.1` to `0.2`
 - Upgraded MSRV to `nightly-2023-08-08`

README.md

@@ -22,13 +22,13 @@ compiler (as of mid 2022, inline assembly for AVR is still 'experimental').
 
 ## MSRV
 
-This crate works with a Rust `nightly-2022-05-10` compiler.
-All versions `0.3.x` will adhere to work with `nightly-2022-05-10`.
+This crate works with a Rust `nightly-2023-08-08` compiler.
+All versions `0.4.x` will adhere to work with `nightly-2023-08-08`.
 Other Rust compiler version (particularly newer ones) might also work,
 but due to the use of experimental compiler features it is possible that
 some future Rust compiler version will fail to work.
 
-Future versions such as `0.4.x` might required a newer Rust compiler
+Future versions such as `0.5.x` might required a newer Rust compiler
 version.
 
 
@@ -88,7 +88,7 @@ use avr_progmem::raw::read_byte;
 use core::ptr::addr_of;
 
 // This `static` must never be directly dereferenced/accessed!
-// So a `let data: u8 = P_BYTE;` is **undefined behavior**!!!
+// So a `let data: u8 = P_BYTE;` ⚠️ is **undefined behavior**!!!
 /// Static byte stored in progmem!
 #[link_section = ".progmem.data"]
 static P_BYTE: u8 = b'A';

src/lib.rs

@@ -38,13 +38,13 @@
 //!
 //! ## MSRV
 //!
-//! This crate works with a Rust `nightly-2022-05-10` compiler.
-//! All versions `0.3.x` will adhere to work with `nightly-2022-05-10`.
+//! This crate works with a Rust `nightly-2023-08-08` compiler.
+//! All versions `0.4.x` will adhere to work with `nightly-2023-08-08`.
 //! Other Rust compiler version (particularly newer ones) might also work,
 //! but due to the use of experimental compiler features it is possible that
 //! some future Rust compiler version will fail to work.
 //!
-//! Future versions such as `0.4.x` might required a newer Rust compiler
+//! Future versions such as `0.5.x` might required a newer Rust compiler
 //! version.
 //!
 //!