Added information about Kiwix JS
'''Kiwix for Microsoft Windows''' is available in
* A [https://download.kiwix.org/bin/kiwix-win.zip portable version] you can directly use after unzipping the file. This version may also be installed.
* A [https://download.kiwix.org/bin/kiwix-installer.exe self-extracting installer] you need to install before being able to use it.</translate>
Kiwix for Microsoft Windows is a 32-bit application and supports Microsoft Windows XP SP2 or later and also is compatible with 64-bit operating systems.</translate>