Update Changelog.md

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+* Concat second lastname to portability contract data [#16](https://gitlab.com/coopdevs/odoo-somconnexio-python-client/-/merge_requests/16)
+
 ## [0.1.13]
 ### Fixed
 * Use the company_name and company_email in company SR [#15](https://gitlab.com/coopdevs/odoo-somconnexio-python-client/-/merge_requests/15)