[nl] Replace the word “disk” by its translation “harde schijf”
[nl] Fix capitalisation of one title
Merge pull request #564 from kheyse/translate_disk

Correctly translate the word “disk” in dutch
Merge pull request #563 from kheyse/fix_title_capitalisation

Fix capitalisation of one title to match the style of other titles (in Dutch)
[nl] -dt errors and incorrect conjugation of english verbs in dutch