README.win32: Update compilation info a bit
README.win32: Update compilation info a bit

Update the info about the Visual Studio projects as VS2010 projects have
landed into master.

kari-lentz/alpha-pango,danny-ku/pango,kari-lentz/alpha-pango,Distrotech/pango,danny-ku/pango,kari-lentz/alpha-pango,Distrotech/pango,kari-lentz/alpha-pango,Distrotech/pango,danny-ku/pango