docs(readme,capability-matrix): add platform check marks for geolocation

Author: coopbri

README.md

@@ -22,7 +22,7 @@ RDK unifies multiple XR technologies, such as AR.js for marker-based AR, LocAR.j
 | ------------------------------------ | --------------- | ---------------------------------------------------------------------------------------------------- | ------- | --- | ----------------------------------------------------------------------------------------- |
 | **Fiducial (Pattern/Barcode)**       | ⚗️ Experimental | [AR.js (ARToolKit)](https://github.com/ar-js-org/ar.js)                                              | ✅      | ✅  | Uses `.patt` or barcode markers. Reliable for printed markers. No WebXR dependency.       |
 | **Image Tracking (Natural Feature)** | 🧭 Planned      | [AR.js (ARToolKit)](https://github.com/ar-js-org/ar.js)                                              | N/A     | N/A | May use `.mind` or `XRTrackedImage`. Ideal for logos or posters. Requires image database. |
-| **Geolocation / World Anchors**      | ⚗️ Experimental | [LocAR.js](https://github.com/ar-js-org/locar.js)                                                    | N/A     | N/A | Uses GPS + compass; may later integrate Mapbox or Cesium.                                 |
+| **Geolocation / World Anchors**      | ⚗️ Experimental | [LocAR.js](https://github.com/ar-js-org/locar.js)                                                    | ✅     | ✅ | Uses GPS + compass; may later integrate Mapbox or Cesium.                                 |
 | **WebXR Native AR/VR Session**       | 🧭 Planned      | [`@react-three/xr`](https://github.com/pmndrs/xr)                                                    | N/A     | N/A | Entry point for true AR/VR sessions. Ties into `XRSessionProvider`.                       |
 | **Face Tracking**                    | 🧭 Planned      | -                                                                                                    | N/A     | N/A | Uses webcam + ML model; lightweight and fast.                                             |
 | **Body/Pose Tracking**               | 🧭 Planned      | [WebXR Body Tracking](https://github.com/immersive-web/body-tracking)                                | N/A     | N/A | Real-time skeletal tracking. GPU/WebGL acceleration required.                             |