MFde: Update the german website.

www/de/developers.sgml 1.231 -> 1.232
www/de/where.sgml 1.100 -> 1.101
www/de/platforms/amd64.sgml 1.23 -> 1.24
www/de/platforms/arm.sgml 1.13 -> 1.14
www/de/share/sgml/news.xml 1.273 -> 1.275

Obtained from: The FreeBSD German Documentation Project