FIGCardHeader updates

Reviewed By: TheSavior

Differential Revision: D6914352

fbshipit-source-id: 7ee12999d19d665509e225d15cb263cbafafe258

Author: sahrens

Libraries/Text/TextProps.js

@@ -31,7 +31,7 @@ type PressRetentionOffset = {
 export type TextProps = {|
   accessible?: boolean,
   allowFontScaling?: boolean,
-  children: Node,
+  children?: Node,
   ellipsizeMode?: 'clip' | 'head' | 'middle' | 'tail',
   nativeID?: string,
   numberOfLines?: number,