Update Readme

[timonkrebs]

Add:

• Channel like data synchronization: https://learn.microsoft.com/en-us/dotnet/core/extensions/channels
  • They provide a reliable and efficient way to pass messages between producers and consumers in a concurrent system: https://www.linkedin.com/pulse/exploring-channels-c-boosting-concurrency-efficiency-ovchinnikov
• Like Dataflow but much more flexible and better DX: https://learn.microsoft.com/en-us/dotnet/standard/parallel-programming/walkthrough-creating-a-dataflow-pipeline
• Simpler/More intuitive than System.Reactive https://github.com/dotnet/reactive