update changelog for rustic_core

Signed-off-by: simonsan <[email protected]>

crates/rustic_core/CHANGELOG.md

@@ -15,6 +15,8 @@ All notable changes to this project will be documented in this file.
   Readme.md ([#820](https://github.com/rustic-rs/rustic/issues/820))
 - Add rustic_core logo
 - Set subtitle for rustic_core readme
+- Fix item links in documentation for rustic_core
+- Pass "--document-private-items" to rustdoc via metadata in manifest
 
 ### Features
 
@@ -28,6 +30,7 @@ All notable changes to this project will be documented in this file.
 - Lint markdown with dprint, run initial dprint fmt
   ([#830](https://github.com/rustic-rs/rustic/issues/830))
 - Lint has been removed
+- Add cliff.toml and generate rustic_core changelog
 
 ### Refactor