Added v1.2.0 into changelog

Author: vyskocilpavel

CHANGELOG.md

@@ -2,6 +2,8 @@
  All notable changes to this project will be documented in this file.
 
  ## [Unreleased]
+ 
+ ## [v1.2.0]
  [Added]
 - Possibility to show a warning in disco-tpl
 
@@ -27,6 +29,7 @@
 - Changelog
 
 [Unreleased]: https://github.com/elixirhub/elixir-aai-proxy-idp-template/tree/master
+[v1.2.0]: https://github.com/elixirhub/elixir-aai-proxy-idp-template/tree/v1.2.0
 [v1.1.0]: https://github.com/elixirhub/elixir-aai-proxy-idp-template/tree/v1.1.0
 [v1.0.2]: https://github.com/elixirhub/elixir-aai-proxy-idp-template/tree/v1.0.2
 [v1.0.1]: https://github.com/elixirhub/elixir-aai-proxy-idp-template/tree/v1.0.1