add docker-compose command in README.md

Author: etnnth

README.md

@@ -4,4 +4,9 @@
 
 Show notes, slides, and samples from the CSharp with CSharpFritz show.  Jupyter notebooks are available in the [notebooks](notebooks) folder. Notebooks are built using [.NET Interactive](https://github.com/dotnet/interactive). 
 
-Recordings from the stream are available in the [CSharp with CSharpFritz playlist](https://www.youtube.com/playlist?list=PLdo4fOcmZ0oXv32dOd36UydQYLejKR61R) on the YouTube .NET channel.
+Recordings from the stream are available in the [CSharp with CSharpFritz playlist](https://www.youtube.com/playlist?list=PLdo4fOcmZ0oXv32dOd36UydQYLejKR61R) on the YouTube .NET channel.
+
+Start locally with docker-compose:
+```shell
+docker-compose up
+```