add missing exports in index.js

Author: batchu5

packages/components/src/index.js

@@ -17,4 +17,7 @@ export { CoreMethods } from './components/readme/CoreMethods';
 export { Installation } from './components/readme/Installation';
 export { Usage } from './components/readme/Usage';
 export { Overview } from './components/readme/Overview';
-export { Readme } from './components/readme/Readme';
+export { Readme } from './components/readme/Readme';
+export { AvailableOperations } from "./components/readme/AvailableOperations";
+export { OperationHeader } from "./components/readme/OperationHeader";
+export { MessageExamples } from "./components/readme/MessageExamples";