Adding note about the need of python-venv to be installed

[sany3001]

Adding note about the need of python(3)_venv to be installed when addding PlatformIO extentsion into VScode.

[CLAassistant]

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[ivankravets]

te: python_venv / python3_venv needs to be installed to be able to finish extension installation.

Where did you find this? You don't need to create any venvs.

[sany3001]

You have close my PR without any conversation with me. Cooperation is over.

[ivankravets]

Sorry, I've asked you above where did yo find Adding note about the need of python(3)_venv**

[sany3001]

It is my mistake, it should be python-venv or python3-venv.
I google that solution when dealing on my Linux Mint with problem that python was not found in the path (if I recall the message from VScode right). In any case, I just installed python3-venv and installation of PlatformIO extension finished well.

Shall be the note moved to other place? Like troubleshooting? In any case, I would like to reformulate it today (later evening). You can check it and let me know.

[ivankravets]

Thanks! Fixed.

[sany3001]

Thanks a lot for fix and thanks for cooperation!