[skip ci] update changelog

Author: Robert Mosolgo

CHANGELOG.md

@@ -18,9 +18,13 @@
 - Allow custom renderers for server rendering #253
 - Server render with `renderToStaticMarkup` via `prerender: :static` #253
 - Accept `config.react.jsx_transform_options = {asset_path: "path/to/JSXTransformer.js"}` #273
+- Added `BabelTransformer` for transforming JSX #295 
+- Added `ExecJSRenderer` to server rendering tools
 
 #### Deprecations
 
+- `JSXTransformer` won't be updated 
+
 #### Bug Fixes
 
 - Fix gem versions in tests #270