Fix pip instruction [skip ci]

Author: stefanradev93

README.md

@@ -64,15 +64,19 @@ More tutorials are always welcome! Please consider making a pull request if you
 
 ## Install
 
-BayesFlow v2 is not yet installable via PyPI, but you can use the following command to install the latest version of the `main` branch:
+You can install the latest stable version from PyPI using:
 
 ```bash
-pip install git+https://github.com/bayesflow-org/bayesflow.git
+pip install bayesflow
 ```
 
-If you encounter problems with this or require more control, please refer to the instructions to install from source below.
+If you want the latest features, you can install from source:
 
-Note: `pip install bayesflow` will install the v1 version of BayesFlow.
+```bash
+pip install git+https://github.com/bayesflow-org/bayesflow.git@dev
+```
+
+If you encounter problems with this or require more control, please refer to the instructions to install from source below.
 
 ### Backend