Updated definition of the 3rd star

There has been a major mis-interpretation of the 3rd star that it can be done instead of the the second (as opposed to in addition to). This is leading to a lot of unusable data that has been badly translated into open formats that are only readable by software packages that most users don't have or understand. e.g. ODS. This is a disaster for open data and why I prepose the change to "as well as" rather than "instead of"