Use 'pixi run start' to default to serving book

Author: matthewfeickert

README.md

@@ -34,9 +34,11 @@ To build the book after setup simply run
 ### Using `pixi`
 
 ```
-pixi run build
+pixi run start
 ```
 
+to build and serve the book
+
 ### Local virtual environment
 
 ```