4 minor typos in the Primer

Found a few typos in the Primer that I don't think have been reported
yet:

1. In the paragraph just before section 2.5, "it has an anonymous simple
type derived from integer..."  This should be positiveInteger, not
integer. 

2. Table 2 - note (5) at the bottom - "calender" should be "calendar".

3. Section 4.2, first paragraph  "...technique we used in in Section
2.5.1..." The word "in" is repeated.

4. Table D1 - "Espanñola" should say "Española" (with no "n").

Thanks,
Priscilla
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Priscilla Walmsley             priscilla@walmsley.com
Author, Definitive XML Schema     (Prentice Hall PTR)
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