Update Nuxeo installation page on Windows 10

After trying to install Nuxeo on Windows 10 by following instructions on https://doc.nuxeo.com/nxdoc/installing-the-nuxeo-platform-on-windows/ I've noticed a few things to review :

*Installation from Windows installer *

• I already had a JDK installed but I'm not sure an error would have appeared if I hadn't
• I do not have pdftohtml installed but I did not notice any error window when starting Nuxeo

Installation from ZIP archive

• The Windows 10 built-in ZIP functionality seems to work fine (althougth way longer than 7-zip)

*VM Installation *

• As I have a Docker for Windows installed, I can't use Virtualbox, I have to use Hyper-v (which is the embeded Virtual Host Engine for Windows 10) and I can't directly import.ovf, .vmx or .vmdk into it.
  I know there is a way to convert vmdk (and maybe ovf also) images to vhdx images (supported by Hyper-v) but I couldn't manage to do it (I tried https://www.microsoft.com/en-us/download/details.aspx?id=42497 without success), it would be good to add a little help in the doc if we have time.

Also about https://doc.nuxeo.com/nxdoc/running-multiple-server-instances-in-windows/ :

• The windows installer didn't add any key in my registry so I can't confirm the key name
• What is meant by "nuxeo.conf" file in the working directory ?
• I think there is no need to have wrappers around nuxeoctl.bat as long you don't use a common nuxeo.conf file