Update ReadMe.

Author: Anthony Sneed

ReadMe.md

@@ -2,7 +2,7 @@
 
 An event-driven approach to Command Query Responsibility Segregation.
 
-### Prerequisites
+## Prerequisites
 - [.NET Core SDK](https://dotnet.microsoft.com/download) (5.0 or greater)
 - [Docker Desktop](https://www.docker.com/products/docker-desktop)
 - MongoDB Docker: `docker run --name mongo -d -p 27017:27017 -v /tmp/mongo/data:/data/db mongo`
@@ -13,6 +13,9 @@ An event-driven approach to Command Query Responsibility Segregation.
   - [Install Dapr CLI](https://docs.dapr.io/getting-started/install-dapr-cli/)
   - [Initialize Dapr](https://docs.dapr.io/getting-started/install-dapr-selfhost/)
 
+## Packages
+- [EventDriven.CQRS](https://www.nuget.org/packages/EventDriven.CQRS)
+
 ## Introduction
 
 This project builds on the principles of [Domain Driven Design](https://en.wikipedia.org/wiki/Domain-driven_design) to provide a set of abstractions and reference architecture for implementing the [Command Query Responsibility Segregation](https://docs.microsoft.com/en-us/azure/architecture/patterns/cqrs) pattern, also known as as CQRS. Because entities process commands by emitting domain events, adding [event sourcing](https://microservices.io/patterns/data/event-sourcing.html) at a later time will be relatively straightforward.