update 6dof tracking

index.md

@@ -49,9 +49,10 @@ acces for existing HMDs when not using NDA APIs remains a major blocker.
     * XR_MNDX_egl_enable - Alternative to XR_KHR_opengl_enable and XR_KHR_opengl_es_enable on Desktop
     * XR_KHR_android_create_instance, XR_KHR_loader_init and XR_KHR_loader_init_android - android specific
     * And many more. See the EXTENSIONS list in [this script](https://gitlab.freedesktop.org/monado/monado/-/blob/main/scripts/generate_oxr_ext_support.py) for the full list of extensions Monado can currently support
-* 6DoF tracking, initial implementation for PSVR and PS Move controllers
-  * Outside-in tracking framework with stereo cameras such as PS4 camera
-  * Work in progress on outside-in tracking with mono cameras such as consumer webcams
+* 6DoF tracking
+  * PSVR and PS Move controllers: Outside-in tracking framework with stereo cameras such as PS4 camera
+    * Work in progress on outside-in tracking with mono cameras such as consumer webcams
+  * Inside-out (VIO/SLAM) tracking using [an improved basalt fork](https://gitlab.freedesktop.org/mateosss/basalt/) with all supported stereo or more cameras such as Windows Mixed Reality, Oculus Rift S, Valve Index
 * Video stream and filter framework for tracking components
 * [Initial Android support](https://www.collabora.com/news-and-blog/news-and-events/monado-update-passing-conformance-android-support-and-more.html)
   * Cardboard viewer