Update to the correct number of pages for examples 25 and 29 on our website.
Update to the correct number of pages for examples 25 and 29 on our website.

svn path=/trunk/; revision=11055

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot