bug#58843: Print "decrypted" rot13 text is buffer is read-only

[Philip Kaludercic]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Philip Kaludercic <philipk@posteo.net>
>> Cc: 58843@debbugs.gnu.org
>> Date: Sat, 29 Oct 2022 15:32:10 +0000
>> 
>> > Sure, that would be even better.  Although in that case we'd need to
>> > change what the manual says about the command, because it explicitly
>> > says we show the encoded text in another window.
>> 
>> How is this:
>
> LGTM, but what about the suitable change to the user manual?

I can't appear to find anything in the manual mentioning rot13.  Are you
suggesting creating a new node?