MUI_PAGE_WELCOME in German

Hallo,

Welcom page in German is:

Es wird empfohlen vor der Installation alle anderen Programme zu schließen.

Is it not better:

Es wird empfohlen, vor der Installation alle anderen Programme zu schließen.

also add a comma after "empfohlen"

Yes, I'd put a comma there. Not sure if it's effected by the spelling reform though.

Comma added.