[tracker] website: Fix preview doc URLs

[Sam Thursfield <sthursfield src gnome org>]

commit 8e0451c70f062425f6afabce22c817c7ae06d3ff
Author: Sam Thursfield <sam afuera me uk>
Date:   Sat Apr 18 14:16:18 2020 +0200

    website: Fix preview doc URLs

 docs/website/docs/developer.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/docs/website/docs/developer.md b/docs/website/docs/developer.md
index 11951ccf4..67cb85501 100644
--- a/docs/website/docs/developer.md
+++ b/docs/website/docs/developer.md
@@ -29,7 +29,7 @@ file](https://gitlab.gnome.org/GNOME/tracker/-/blob/master/HACKING.md).
 We provide an online version of the documentation for the latest in-development version
 of Tracker. You can browse it here:
 
-  * [libtracker-sparql](../api-preview/libtracker-sparql/)
-  * [ontology](../api-preview/ontology/)
+  * [libtracker-sparql](../api-preview/libtracker-sparql3/)
+  * [ontology](../api-preview/tracker3-nepomuk/)
 
 Be aware that some libraries from Tracker 2.0 will not be available for Tracker 3.0.