fix rookie mistake

Add a one-liner that works. Then think about the context and decide to
recommend a rearrangement. And then muck up the consequential adjustment
of the original one-liner. I think I got a badge for that in the scouts.

Well spotted. Sorry.

Signed-off-by: Phill Kelley <34226495+Paraphraser@users.noreply.github.com>

README.md

@@ -1930,7 +1930,7 @@ $ chmod 600 gpg.conf
 Set the following option. This avoids the problem where GnuPG will prompt, repeatedly, for the insertion of an already-inserted YubiKey:
 
 ```console
-$ echo "disable-ccid" >>~/scdaemon.conf
+$ echo "disable-ccid" >>scdaemon.conf
 ```
 
 >  The `disable-ccid` option is only required for GnuPG versions 2.3 or later. However, setting this option does not appear to interfere with the operation of earlier versions of GnuPG so it is recommended for all installations.