Fix bad NUX link in Legalpad search view

Summary:
See <https://discourse.phabricator-community.org/t/clicking-the-create-a-document-button-on-fresly-installed-phabricators-legalpad-results-in-404/1088>.

This URI isn't correct.

Test Plan: Visited {nav Use Results > New User State} in developer mode, clicked green button. Before: 404. After: taken to the edit screen.

Differential Revision: https://secure.phabricator.com/D19024

src/applications/legalpad/query/LegalpadDocumentSearchEngine.php

@@ -176,7 +176,7 @@ final class LegalpadDocumentSearchEngine
     $create_button = id(new PHUIButtonView())
       ->setTag('a')
       ->setText(pht('Create a Document'))
-      ->setHref('/legalpad/create/')
+      ->setHref('/legalpad/edit/')
       ->setColor(PHUIButtonView::GREEN);
 
     $icon = $this->getApplication()->getIcon();