let users know that we prefer they make their own container compatible overlay files

Author: s-sajid-ali

docs/hpc/06_tools_and_software/04_python_packages_with_virtual_environments.mdx

@@ -1,8 +1,12 @@
 # Python Packages with Virtual Environments
 
-In order to be able to install new Python packages and make your work reproducible, please use virtual environments.
 
-There is more than one way to create a private environment in Python.
+:::tip
+This page describes how you can create virtual environments without containers in `$SCRATCH`/`/home/$USER`. We strongly encourage you to create your computatinal environments within Overlay files attached to Apptainer containers [as described in this section](../07_containers/03_singularity_with_conda.md). Please note that creating both kinds of conda environments is strongly discouraged as it leads to packages from one environment being accidentally used in another.
+:::
+
+
+In order to be able to install new Python packages and make your work reproducible, please use virtual environments. There is more than one way to create a private environment in Python.
 
 ## Create project directory and load Python module
 ```sh