Just a note to the Doc writers - small fix to be made

Hi,

I'm starting to read the tutorial in the right order, but when I got to the "Design and Architectural Goals" section, clicking "Next" took me to the "Server Requirements" page instead of the beginning of the tutorial, which is the next section.

Incidentally, "Server Requirements" doesn't appear in the index for the "General Topics".

Thx,
D.