README.md in react-rails-2.4.4.pre vs README.md in react-rails-2.4.4

@@ -125,9 +125,18 @@
 `app/javascript/components/samplecomponent.js` | `react_component("samplecomponent")`
 `app/javascript/components/sample_component.js` | `react_component("sample_component")`
 `app/javascript/components/SampleComponent.js` | `react_component("SampleComponent")`
 `app/javascript/components/SampleComponent.js.jsx` | Has to be renamed to SampleComponent.jsx, then use `react_component("SampleComponent")`
 
+### Typescript support
+
+If you want to use React-Rails with Typescript, simply run the installer and add @types:
+```
+$ bundle exec rails webpacker:install:typescript
+$ yarn add @types/react @types/react-dom
+```
+
+Doing this will allow React-Rails to support the .tsx extension. 
 
 ## Use with Asset Pipeline
 
 `react-rails` provides a pre-bundled React.js & a UJS driver to the Rails asset pipeline. Get started by installing: