update README

README.md

 # Bitalina data acquisition and analysis
 
-Raw data from a [Bitalino](https://www.pluxbiosignals.com) sensor
-written to a CSV file with a Python script and analysed with
-[Neurokit2](https://github.com/neuropsychology/NeuroKit).
+- Stream data from a [Bitalino](https://www.pluxbiosignals.com) sensor
+  to a CSV file or LSL.
+- Example pre-processing with [Neurokit2](https://github.com/neuropsychology/NeuroKit).
 
 ## Install
 
@@ -23,6 +23,7 @@ $ uv sync
 ```sh
 $ source .venv/bin/activate
 $ bitalino-csv --help
+$ bitalino-lsl --help
 ```
 
 ## PLUX API