Updated Usage (markdown)

Usage.md

@@ -42,17 +42,10 @@ Different extensions require additional dependencies. Some of them might conflic
 There is also the option to create a script `data/config/auto/startup.sh` which will be called on container startup, in case you want to install any additional dependencies for your extensions or anything else.
 
 
-In case something goes wrong with some dependency (as it is usually the case, unfortunately) you can always comment section in `startup.sh` file, remove the extension, and do `docker compose --profile auto down` to clean up messy containers. When run again, you will have a fresh container.
-
-
 An example of your `startup.sh` might looks like this:
 ```sh
-# install all packages for the extensions
-shopt -s nullglob
-list=(./extensions/*/requirements.txt)
-for req in "${list[@]}"; do
-  pip install -q -r "$req"
-done
+#!/bin/bash
+
 # opencv-python-headless to not rely on opengl and drivers.
 pip install -q --force-reinstall opencv-python-headless
 ```