* Fix typo

* Clean up change description

Fixes #5333

printFileSizesAfterBuild calls canReadAsset with an object containing
the file name while measureFileSizesBeforeBuild calls it with just the
name. When canReadAsset only receives the name it returns false since
accessing the `name` property results in undefined.

This commit fixes that by having canReadAssset instead expect only the
file name and making printFileSizesAfterBuild just like
measureFileSizesBeforeBuild only provide the name as argument.

* Fix broken link in main README

* Fix incorrect link in user guide README

It seems correct URL is https://developers.google.com/web/fundamentals/web-app-manifest/
Current URL (https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/) is redirecting to there.

* avoid TypeError on when registering service workers without config

Fixes #5299

* same before config.onUpdate

* add react-testing-library documentation/examples

* make react-testing-library a heading

* fix typo

* Add a temporary README file

This commit adds a temporary readme file that points users to the
main README file or the User Guide.

* Add a "getting started" doc

This commit adds a page for getting started, copying the
"Get started now" from the current `README.md`.

* Add link to the get started page from the index page

* Add the getting started doc to the site header

* Add footer link to getting started info

* Add getting started to the sidebar

* Add placeholder for the user guide page

* Add links to the user-guide page as well

* Add auto-generated i18n file

* Move all docusaurus related files into own folder

 - babel-preset-react-app@5.0.3
 - create-react-app@2.0.3
 - react-dev-utils@6.0.4
 - react-error-overlay@5.0.4
 - react-scripts@2.0.4

create-react-app-parcel is failing and there is no support for that.

* Caches the Yarn resolution for faster installs

* Adds the yarn.lock.cached file to the publish list

* Removes the copied lockfile when the install fails

* Updates the release checklist

* Add `.mjs` support back to webpack, because webpack was not the problem

* Continue toggling `.mjs` to `javascript/auto` mode

* Be more inline with the specification

* Bump old Node to 6

Borrowed these from the reactjs/reactjs.org repo on GitHub:

- https://github.com/reactjs/reactjs.org/blob/master/static/logo-og.png
- https://github.com/reactjs/reactjs.org/blob/master/static/favicon.ico

* Remove "who uses this" callout on front page

* Remove users and help pages

* Add link to React's support docs

Instead of removing the Help link altogether, this commit re-adds it
as an external link to React's existing support documentation

This commit sets the page name to "Create React App", the tagline to
"Create React apps with no build configuration." and the copyright
owner to "Facebook"

* Remove the blog link from the header

* Remove blog link from the site footer

* Remove blog translation, as we no longer have a blog

* Remove all sample blog-content

* Remove blog info from the website readme

* Initial setup of Docusaurus

Followed steps on: https://docusaurus.io/docs/en/installation

* Delete doc1.md

* Delete doc2.md

* Delete doc3.md

* Delete exampledoc4.md

* Delete exampledoc5.md

 - babel-plugin-named-asset-import@0.2.2
 - babel-preset-react-app@5.0.2
 - confusing-browser-globals@1.0.3
 - create-react-app@2.0.2
 - eslint-config-react-app@3.0.3
 - react-app-polyfill@0.1.3
 - react-dev-utils@6.0.3
 - react-error-overlay@5.0.3
 - react-scripts@2.0.3