Update CHANGES.md

CHANGES.md

@@ -45,6 +45,7 @@ Change Log
 * Fixed an issue where point primitives behind the camera would appear in view. [#6904](https://github.com/AnalyticalGraphicsInc/cesium/issues/6904)
 * The `createGroundPolylineGeometry` web worker no longer depends on `GroundPolylinePrimitive`, making the worker smaller and potentially avoiding a hanging build in some webpack configurations.
 * Fixed an issue that cause terrain entities (entities with unspecified `height`) and `GroundPrimitives` to fail when crossing the international date line in 3D. [#6951](https://github.com/AnalyticalGraphicsInc/cesium/issues/6951)
+* Fixed normal calculation for `CylinderGeometry` when the top radius is not equal to the bottom radius [#6863](https://github.com/AnalyticalGraphicsInc/cesium/pull/6863)
 
 ### 1.48 - 2018-08-01
 
@@ -78,7 +79,6 @@ Change Log
 * Improved support for generating a TypeScript typings file using `tsd-jsdoc` [#6767](https://github.com/AnalyticalGraphicsInc/cesium/pull/6767)
 * Updated viewBoundingSphere to use correct zoomOptions [#6848](https://github.com/AnalyticalGraphicsInc/cesium/issues/6848)
 * Fixed a bug that caused the scene to continuously render after resizing the viewer when `requestRenderMode` was enabled. [#6812](https://github.com/AnalyticalGraphicsInc/cesium/issues/6812)
-* Fixed normal calculation for `CylinderGeometry` when the top radius is not equal to the bottom radius [#6863](https://github.com/AnalyticalGraphicsInc/cesium/pull/6863)
 
 ### 1.47 - 2018-07-02