added to glossary-table.data

[Dirk Lattermann]

Hello,

I added and corrected some German translations to the entries in
Documentation/tex/glossary-table.data.

One entry was obviously wrong ('Klavierauszug' is not 'grand staff'
but 'piano reduction'), so I removed it, apologies.

Cheers, Dirk.

glossary-table.data.gz