Update README.md

Author: tschm

Diff for: README.md

@@ -57,7 +57,7 @@ You need to install [task](https://taskfile.dev).
 Starting with
 
 ```bash
-task simulator:install
+task markowitz:install
 ```
 
 will install [uv](https://github.com/astral-sh/uv) and create
@@ -70,7 +70,7 @@ We install [marimo](https://marimo.io) on the fly within the aforementioned
 virtual environment. Executing
 
 ```bash
-task simulator:marimo
+task markowitz:marimo
 ```
 
 will install and start marimo.