Update faq.md after review from Mat

Co-authored-by: Mat Martineau <[email protected]>

faq.md

@@ -254,6 +254,6 @@ workarounds: </summary>
     Host (...)
         ProxyCommand mptcpize run ssh -W %h:%p -l %r -p %p %h
     ```
-    This is useful not to prefix all `ssh` commands, or if SSH is used other
+    This is useful not to require a prefix for all `ssh` commands, or if SSH is used by other
     tools, e.g. `git`, a file manager like Nautilus, Filezilla, etc.
 </details> {: .ctsm}