Add link to TypeScript page in Getting Started (#6817)

This also updates our min version of Node that we ask for

Author: ianschmitz

docusaurus/docs/getting-started.md

@@ -34,7 +34,7 @@ Just create a project, and you’re good to go.
 
 ## Creating an App
 
-**You’ll need to have Node >= 6 on your local development machine** (but it’s not required on the server). You can use [nvm](https://github.com/creationix/nvm#installation) (macOS/Linux) or [nvm-windows](https://github.com/coreybutler/nvm-windows#node-version-manager-nvm-for-windows) to easily switch Node versions between different projects.
+**You’ll need to have Node >= 8.10 on your local development machine** (but it’s not required on the server). You can use [nvm](https://github.com/creationix/nvm#installation) (macOS/Linux) or [nvm-windows](https://github.com/coreybutler/nvm-windows#node-version-manager-nvm-for-windows) to easily switch Node versions between different projects.
 
 To create a new app, you may choose one of the following methods:
 
@@ -62,6 +62,11 @@ yarn create react-app my-app
 
 _`yarn create` is available in Yarn 0.25+_
 
+
+### Creating a TypeScript app
+
+Follow our [Adding TypeScript](adding-typescript.md) documentation to create a TypeScript app.
+
 ## Output
 
 Running any of these commands will create a directory called `my-app` inside the current folder. Inside that directory, it will generate the initial project structure and install the transitive dependencies: