Merge pull request #1268 from metabase/again_docs

fixing broken link.

docs/administration-guide/start.md

@@ -6,7 +6,7 @@ Are you in charge of managing Metabase for your organization? Then you're in the
 
 * [Connect Metabase to databases in your organization](01-managing-databases.md)
 * [Enable features that send email (SMTP)](02-setting-up-email.md)
-* [Edit your data model](03-data-model.md)
+* [Edit your database metadata](03-metadata-editing.md)
 * [Manage user accounts](04-managing-users.md)
 * [Configure settings](06-configuration-settings.md)