Update CHANGES.md.

Author: bagnell

CHANGES.md

@@ -13,7 +13,7 @@ Change Log
 * Added `AttributeCompression.zigZagDeltaDecode` which will decode delta and ZigZag encoded buffers in place.
 * Added `pack` and `unpack` functions to `OrientedBoundingBox` for packing to and unpacking from a flat buffer.
 * Added `Cesium3DTileset.ellipsoid` determining the size and shape of the globe. This can be set at construction and defaults to a WGS84 ellipsoid.
-* Added experimental support for [3D Tiles Vector Data](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/vector-tiles/TileFormats/VectorData) ([#4665](https://github.com/AnalyticalGraphicsInc/cesium/pull/4665)). The new and modified Cesium APIs are:
+* Added experimental support for [3D Tiles Vector and Geometry data](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/vector-tiles/TileFormats/VectorData) ([#4665](https://github.com/AnalyticalGraphicsInc/cesium/pull/4665)). The new and modified Cesium APIs are:
    * `Cesium3DTileStyle` has expanded for styling point features. See the [styling specification](https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/vector-tiles/Styling#vector-data) for details.
    * `Cesium3DTileFeature` can modify `color` and `show` properties for polygon, polyline, and geometry features.
    * `Cesium3DTilePointFeature` can modify the styling options for a point feature.