chore: Update CHANGELOG for v6.3.0

Author: mbektchiev

CHANGELOG.md

@@ -10,6 +10,10 @@ previous_url: /Changelogs/iOS Runtime
 6.3.0 (2019-12-11)
 ====
 
+### Features
+
+* **webkit:** Update WebKit to [iOS tag 13.2](https://trac.webkit.org/browser/webkit/releases/Apple/iOS%2013.2?rev=253203) ([#1220](https://github.com/NativeScript/ios-runtime/pull/1220))
+
 ### Bug Fixes
 
 * **debugger:** Chrome DevTools console evaluation doesn't work with `tns debug --start` ([#905](https://github.com/NativeScript/ios-runtime/issues/905))
@@ -19,7 +23,6 @@ previous_url: /Changelogs/iOS Runtime
 * **runtime:** Do not hide property with more accessors ([#1226](https://github.com/NativeScript/ios-runtime/pull/1226), fixes [#1223](https://github.com/NativeScript/ios-runtime/issues/1223))
 * **runtime:** Don't crash app if `discardUncaughtJsExceptions` flag is present ([#1230](https://github.com/NativeScript/ios-runtime/pull/1230))
 * **runtime:** Lookup into native MD tables when searching by name ([#1218](https://github.com/NativeScript/ios-runtime/pull/1218), fixes [#712](https://github.com/NativeScript/ios-runtime/issues/712) and [#1223](https://github.com/NativeScript/ios-runtime/issues/1223))
-* **webkit:** Update WebKit to [iOS tag 13.2](https://trac.webkit.org/browser/webkit/releases/Apple/iOS%2013.2?rev=253203) ([#1220](https://github.com/NativeScript/ios-runtime/pull/1220))
 
 6.2.0 (2019-10-30)
 =====