Merge pull request #1384 from comit-network/1131-changelog-update

add bitcoin HTTP API change to changelog

Author: mergify[bot]

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Move config files to standard location based on platform (OSX, Windows, Linux).
 - Align implementation with RFC-002 to use the decision header instead of status codes.
+- Replace ZMQ by using bitcoind's HTTP API for retrieving bitcoin blocks.
 
 [Unreleased]: https://github.com/comit-network/comit-rs/compare/b2dd02a7f93dc82f5cc9fd4b6eaaf54de1459ff6...HEAD
 [0.1.0]: https://github.com/comit-network/comit-rs/compare/1625533e04119e8496b14d5e18786f150b4fce4d...b2dd02a7f93dc82f5cc9fd4b6eaaf54de1459ff6