Updated the setup procedure for the ESP32 development

[MatthiasJentsch]

Because the old description was completely out-of-date here is a working one

Description

• Updated the setup procedure for the ESP32 development

Motivation and Context

The ESP32 setup procedure was out-of-date. After I setup my PC from scratch here is a working one

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: Matthias Jentsch info@matthias-jentsch.de

[nfbot]

Hi @HorstBock,

I'm nanoFramework bot.
Thank you for your contribution!

A human will be reviewing it shortly. 😉

[CLAassistant]

All committers have signed the CLA.

[AdrianSoundy]

Fixed some typos and added more info.