doc: Add changelogs

Author: jmartinesp

bindings/matrix-sdk-ffi/CHANGELOG.md

@@ -6,6 +6,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased] - ReleaseDate
 
+### Features
+
+- Add `Client::get_store_sizes()` so to query the size of the existing stores, if available. ([#5911](https://github.com/matrix-org/matrix-rust-sdk/pull/5911))
+
 ### Breaking changes
 
 - `TimelineConfiguration::track_read_receipts`'s type is now an enum to allow tracking to be enabled for all events

crates/matrix-sdk/CHANGELOG.md

@@ -6,6 +6,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased] - ReleaseDate
 
+### Features
+
+- Add `Client::get_store_sizes()` so to query the size of the existing stores, if available. ([#5911](https://github.com/matrix-org/matrix-rust-sdk/pull/5911))
+
 ### Refactor
 
 - [**breaking**]: `Client::server_vendor_info()` requires to enable the