Remove references to Node 8 (facebook#10214)

Author: ianschmitz

README.md

@@ -39,7 +39,7 @@ Create a project, and you’re good to go.
 
 ## Creating an App
 
-**You’ll need to have Node 8.16.0 or Node 10.16.0 or later version 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 switch Node versions between different projects.
+**You’ll need to have Node 10.16.0 or later version on your local development machine** (but it’s not required on the server). We recommend using the latest LTS version. 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 switch Node versions between different projects.
 
 To create a new app, you may choose one of the following methods:
 
@@ -217,4 +217,4 @@ We are grateful to the authors of existing related projects for their ideas and
 
 ## License
 
-Create React App is open source software [licensed as MIT](https://github.com/facebook/create-react-app/blob/master/LICENSE). The Create React App logo is licensed  under a [Creative Commons Attribution 4.0 International license](https://creativecommons.org/licenses/by/4.0/).
+Create React App is open source software [licensed as MIT](https://github.com/facebook/create-react-app/blob/master/LICENSE). The Create React App logo is licensed under a [Creative Commons Attribution 4.0 International license](https://creativecommons.org/licenses/by/4.0/).

docusaurus/docs/debugging-tests.md

@@ -6,8 +6,6 @@ sidebar_label: Debugging Tests
 
 There are various ways to setup a debugger for your Jest tests. We cover debugging in Chrome and [Visual Studio Code](https://code.visualstudio.com/).
 
-> Note: debugging tests requires Node 8 or higher.
-
 ## Debugging Tests in Chrome
 
 Add the following to the `scripts` section in your project's `package.json`