tamed: Fix --help and add another reporting example

$2 was not escaped and would fail expansion.  I apparently did not run
--help before committing.  Shame on me.

bin/tamed

@@ -509,7 +509,10 @@ The table is tab-delimited.  Here are some useful examples:
   $ cut -2,3 runtab
 
   # convert milliseconds into minutes (!) and sort desc
-  $ awk '{ $2 = $2 / 1000 / 60; print } runtab | sort -nrk2
+  $ awk '{ \$2 = \$2 / 1000 / 60; print } runtab | sort -nrk2
+
+  # convert to CSV (assuming no quoting is needed)
+  $ tr '\t' , < runtab > runtab.csv
 
 Options:
   --help    show this message