Spelling error and an ambiguity in docs

[Tim Chase]

On this page

https://www.gnu.org/software/rcs/manual/rcs.html

In section 2.6 it needs

s/comamnds/commands/



Then in section 3.1.2 the date specification is listed as
"Y.mm.dd.hh.mm.ss" but "mm" is listed twice.  While it should be
obvious from the context that the first "mm" is the month and the
second "mm" is the minutes, it might be improved by making one of
them "MM" (I's recommend using strftime format strings instead,
making it "Y.m.d.H.M.S") along with the corresponding descriptive
text afterward.

Thanks!

-tkc