Update CHANGELOG

CHANGELOG.md

@@ -14,6 +14,7 @@ Versions with only mechanical changes will be omitted from the following list.
 ## 0.4.23
 * Impl Add<Month> + Sub<Month> for NaiveDateTime
 * Export `oldtime::OutOfRangeError` to the public API
+* Add feature documentation for docs.rs [(#779)](https://github.com/chronotope/chrono/pull/779)
 
 ## 0.4.22
 
@@ -53,7 +54,6 @@ Versions with only mechanical changes will be omitted from the following list.
 * Add compatibility with rfc2822 comments (#733)
 * Make `js-sys` and `wasm-bindgen` enabled by default when target is `wasm32-unknown-unknown` for ease of API discovery
 * Add the `Months` struct and associated `Add` and `Sub` impls
-* Add `GNU` `coreutils` `date`-like time zone formatting
 
 ## 0.4.19
 
@@ -779,3 +779,4 @@ and replaced by 0.2.25 very shortly. Duh.)
 ## 0.1.0 (2014-11-20)
 
 The initial version that was available to `crates.io`.
+