update docs

Author: finswimmer

Diff for: docs/configuration.md

@@ -48,6 +48,7 @@ virtualenvs.in-project = null
 virtualenvs.options.always-copy = true
 virtualenvs.options.system-site-packages = false
 virtualenvs.path = "{cache-dir}/virtualenvs"  # /path/to/cache/directory/virtualenvs
+virtualenvs.prefer-shell-python = false
 ```
 
 ## Displaying a single configuration setting
@@ -188,6 +189,13 @@ Give the virtual environment access to the system site-packages directory.
 Applies on virtualenv creation.
 Defaults to `false`.
 
+### `virtualenvs.prefer-shell-python`
+
+**Type**: boolean
+
+Use currently activated Python version to create a new venv.
+Defaults to `false`, which means Python version used during Poetry installation is used.
+
 ### `repositories.<name>`
 
 **Type**: string

Diff for: docs/managing-environments.md

@@ -18,7 +18,7 @@ To achieve this, it will first check if it's currently running inside a virtual
 If it is, it will use it directly without creating a new one. But if it's not, it will use
 one that it has already created or create a brand new one for you.
 
-By default, Poetry will try to use the currently activated Python version
+By default, Poetry will try to use the Python version used during Poetry's installation
 to create the virtual environment for the current project.
 
 However, for various reasons, this Python version might not be compatible
@@ -38,6 +38,7 @@ pyenv install 3.9.8
 pyenv local 3.9.8  # Activate Python 3.9 for the current project
 poetry install
 ```
+This requires setting the `virtualenvs.prefer-shell-python` option to `true`.
 {{% /note %}}
 
 ## Switching between environments