Rename Wine User Guide to Wine User's Guide?

[Scott Ritchie]

The Winelib documentation is called the Winelib User's Guide, but the
Wine documentation is called the Wine User Guide.

I think for consistency's sake we should rename the Wine User Guide to
Wine User's Guide - afterall, it's a guide for the user, not about the
user.

Thoughts?

Thanks,
Scott Ritchie
[e-mail]