Update FAQ.md (#361)

FAQ.md

@@ -26,7 +26,7 @@ Please run `ssh -Tv git@github.com` in your terminal and paste the output in a [
 
 ### How do I tell SSH to use a specific key?
 
-You can create a `mykey.pub` (where `mykey` is the name of your key) in your `~/.ssh/` directory with the contents of your public key, and specify that you want to use that key in your `~/.ssh/config`.  [This ServerFault answer](https://serverfault.com/a/295771) has more details on setting that up
+Beginning with Secretive 2.2, every secret has an automatically generated public key file representation on disk, and the path to it is listed under "Public Key Path" in Secretive. You can specify that you want to use that key in your `~/.ssh/config`.  [This ServerFault answer](https://serverfault.com/a/295771) has more details on setting that up.
 
 ### Can I use Secretive for SSH Agent Forwarding?