* doc/ref/api-evaluation.texi (Scheme Read): Note that read-set! is
syntax.
(Scheme Write): Likewise for print-set!.
* doc/ref/api-io.texi (Writing): Remove reference to
print-options-interface.
* doc/ref/repl-modules.texi (Readline Options): Update, and add entries
for readline-options, readline-set! et al.
* doc/ref/api-options.texi (Debugger options):
* doc/ref/repl-modules.texi (Readline Options): Use 'help instead of
'full (they are entirely equivalent right now). Update output to show
options in the right order.