Add comment how to setup pinentry

.gnupg/gpg-agent.conf

@@ -8,6 +8,7 @@ enable-ssh-support
 # To set the desired pinentry wrapper instead of setting pinentry-program
 
 # sudo update-alternatives --install /usr/bin/pinentry pinentry (gpgconf --list-dirs homedir)/pinentry-auto.sh 99
+# Or copy directly to /usr/bin/pinentry-auto 
 
 # 3 Hours cache on SSH-keys
 default-cache-ttl-ssh 21600