A couple of Calc functions missing from the Egnlish help files

Howdy,

I'm in the process of adding the 4.3 Calc function additions into the Guide
and I came across two which do not have entries in the help files on the
wiki, at least not the english pages. The entries are found in the NB
language pages, but oddly the entries are in English.

The two I found like this are NORM.S.DIST and NORM.S.INV.

Best wishes,

Drew