Add detailed steps in 'Downloading the program - HW config from AX'

[zantiu]

Describe the solution you'd like

Two items to clarify better in this step of the learning-path:

• a good guide to set up PLCSim Advanced for the first time
• detailed steps for the download. For example where the master password is coming from

Additional context

Assume that some people will do this without installing TIA.

[KPirmer]

I guess for the initial download the master password is necessary to download the prepared hardware configuration. I was able to download an own hardware configuration by following these steps from their documentation https://console.simatic-ax.siemens.io/docs/hw.

However I agree to describe the steps for the download with the prepared configuration a bit more concise.