baud rate and bit rate were horribly confused in this document. Baud

baud rate and bit rate were horribly confused in this document.  Baud
rate is how fast modems exchange symbols.  Bit rate is how many bits
per second the serial port nominally communicates at.  Try to use bit
rate consistently where that's what is ment.  The default data rate is
now 9600 baud.  300 baud being default pre-dates 4.4-LITE1.  Document
that tip doesn't respect the system default rate for a given channel.

Sorry guys, but no ucbvax, kremvax or kgbvax added to the example.

Noted by: bde