Update changelog

Author: Conner-PYS

CHANGELOG.md

@@ -7,9 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.1] (2024-07-16)
+
+### Added
+* Added attribute call during docs.rs builds to generate railroad diagram.
+* The attribute proc macro is published in the crate [cifg-diag-attr][attr-crates-io].
+
 ## [1.0.0] (2024-07-15)
 
 ### Added
 * Initial commit of `cifg` macro.
 * Licenses and readme.
 
+[attr-crates-io]: https://crates.io/crates/cifg-diag-attr