docs: mention enabled venv in virtualenvs.create configuration (#7608)

docs/configuration.md

@@ -279,9 +279,9 @@ Use parallel execution when using the new (`>=1.1.0`) installer.
 
 Create a new virtual environment if one doesn't already exist.
 
-If set to `false`, Poetry will not create a new virtual environment. If it detects a virtual environment
-in `{cache-dir}/virtualenvs` or `{project-dir}/.venv` it will install dependencies into them, otherwise it will install
-dependencies into the systems python environment.
+If set to `false`, Poetry will not create a new virtual environment. If it detects an already enabled virtual
+environment or an existing one in `{cache-dir}/virtualenvs` or `{project-dir}/.venv` it will
+install dependencies into them, otherwise it will install dependencies into the systems python environment.
 
 {{% note %}}
 If Poetry detects it's running within an activated virtual environment, it will never create a new virtual environment,