add package vadiminshakov/committer (#5545)

README.md

@@ -964,6 +964,7 @@ _Packages that help with building Distributed Systems._
 - [bedrock](https://github.com/z5labs/bedrock) - Provides a minimal, modular and composable foundation for quickly developing services and more use case specific frameworks in Go.
 - [capillaries](https://github.com/capillariesio/capillaries) - distributed batch data processing framework.
 - [celeriac](https://github.com/svcavallar/celeriac.v1) - Library for adding support for interacting and monitoring Celery workers, tasks and events in Go.
+- [committer](https://github.com/vadiminshakov/committer) - A distributed transactions management system (2PC/3PC implementation).
 - [consistent](https://github.com/buraksezer/consistent) - Consistent hashing with bounded loads.
 - [consistenthash](https://github.com/mbrostami/consistenthash) - Consistent hashing with configurable replicas.
 - [dht](https://github.com/anacrolix/dht) - BitTorrent Kademlia DHT implementation.