IBM branding name 'Spectrum Virtualize family' is changed
to 'Storage Virtualize family'. Made the branding name change at
all the places in documentation.
Also, Corrected the hyperlink for 'IBM Documentation' by removing
"en" in the link. Instead of making english as default, the link
will redirect based on the browser regional language settings.
Change-Id: Icd668ee471e6b2e33b20f6abcfb7510a4e5e79bb