Update manual test.

wiki/src/contribute/release_process/test.mdwn

@@ -304,7 +304,7 @@ You *really* have to reboot between each language.
   - be auto-configured to use the same keyboard layout as the
     X session.
 * In the Tor Browser:
-  - Disconnect.me must be the default, pre-selected search plugin. (automate: [[!tails_ticket 10265]])
+  - DuckDuckGo must be the default, pre-selected search plugin. (automate: [[!tails_ticket 10265]])
   - the search plugins must be localized for the expected locales
     (automate: [[!tails_ticket 10267]]).