Delete obsolete release history section

Author: ctz

README.md

@@ -8,24 +8,10 @@ poor and doing so doesn't address a meaningful threat model.
 [![Crate](https://img.shields.io/crates/v/rustls-pemfile.svg)](https://crates.io/crates/rustls-pemfile)
 [![Documentation](https://docs.rs/rustls-pemfile/badge.svg)](https://docs.rs/rustls-pemfile/)
 
-# Release history
-- 1.0.3 (2023-06-28)
-  * Add certificate revocation list (CRL) format support.
-  * Add `crls` helper function.
-- 1.0.2 (2023-01-10)
-  * Add `ec_private_keys()` helper function.
-  * Update base64 to the latest version.
-- 1.0.1 (2022-08-02)
-  * Enable parsing PEM files with non-UTF-8 content between items.
-- 1.0.0 (2022-04-14)
-  * Initial stable release. No API changes.
-- 0.3.0 (2022-02-05)
-  * Add SEC1 EC key format support (ie, "EC PRIVATE KEY" sections) thanks to @farcaller.
-  * Make `Item` enum non-exhaustive.
-- 0.2.1 (2021-04-17)
-  * Performance improvements thanks to @zz85.
-- 0.2.0 (2020-12-28)
-  * Initial release.
+# Changelog
+
+The detailed list of changes in each release can be found at
+https://github.com/rustls/pemfile/releases.
 
 # License
 rustls-pemfile is distributed under the following three licenses: