tempo commands not in learning manual

[Dan Wilckens]

Something so fundamental as tempo should be clearly explained somewhere easy to
find in the documentation, and it seems to be difficult to find at all in the
learning manual (looking at 2.12 documentation and briefly at 2.13).  In my view
this is something fundamental enough to be in most pieces and should maybe be
included in section 2 of the learning manual, either alongside Adding Text
(maybe change this section to Adding Text and Tempo Marks), or perhapsAdvanced
Rhythmic Commands (although it's not exactly advanced).  I remember having
trouble finding this documentation in the past and it looks like the situation
hasn't been addressed yet.  I think this could help new users if all the
fundamentals are all right there, easy to find.
Thanks for the great program, Dan W.