[R-390] Updated Pearls on our website

[Larry H]

The 'Pearls' of wisdom on our website have been updated.  If you don't see
the new pages, you will need to 'refresh' your browser's display (circular
arrow in upper left corner).  This will cause the browser to refresh its
cache.  To access them, go to our website at r-390a.net and follow the menu
to 'references'  then the 'Pearls of Wisdom' about in the middle (at the
top of the 'tutorials').

I give a big thanks to Wei Li for taking the time to do this and send me
the files.  The Pearls are very important to us all, especially since they
are searchable.    Thanks again, Wei.

Regards, Larry