Prepare release 1.2.0

Author: Thomas Magis-Agosta

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.2.0] - 2024-06-12
+
+* **Add `filter` function** ([#2](#2))
+
+  `SectionedResults` now has a `filter` function that returns a new `SectionedResults` object containing, in order, the elements that satisfy the given predicate.
+
 ## [1.1.0] - 2024-05-09
 
 * **Conform to `Equatable`** ([#1](#1))