MFde: Update the German Documentation set.

doc/de_DE.ISO8859-1/books/fdp-primer/book.sgml 1.31 -> 1.32
doc/de_DE.ISO8859-1/books/fdp-primer/overview/chapter.sgml 1.23 -> 1.24
doc/de_DE.ISO8859-1/books/fdp-primer/sgml-markup/chapter.sgml 1.74 -> 1.77
doc/de_DE.ISO8859-1/books/fdp-primer/sgml-primer/chapter.sgml 1.48 -> 1.49
doc/de_DE.ISO8859-1/books/fdp-primer/stylesheets/chapter.sgml 1.13 -> 1.14
doc/de_DE.ISO8859-1/books/fdp-primer/tools/chapter.sgml 1.33 -> 1.34

Obtained from: The FreeBSD German Documentation Project