* Add json and css to lint-staged in template README

This changes the proposed way about using prettier inside the README.md, because prettier supports css since the 1.4.0 release and json since the 1.5.0 release. 

Was not sure if it was a good idea to add different regexes for json and css inside the README.md don't have a real opinion about it myself, could maybe easier for starters to do so if they wan't to add things like eslint or stylelint the the commit hooks.

* Use capitalization for Javascript, CSS and JSON

* Change 'Javascript to JavaScript'

* Minor code style edits to user guide

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Don't ask to install webpack for using Styleguidist

* Update README.md

* Added instruction on how to install Prettier

* Tweak style

* Update README.md

* Update README.md

* Support JSX

* Update README.md

* Update README.md

In the section about npm run build fails in troubleshooting added more
info about memory usage of the build script and a link to a tutorial for
adding more swap space as a viable solution.

* Update docs with WebSocket proxy information

* Tweak wording

Due to many of the other examples in the README showing both `npm` and `yarn` commands.
I have added an example of how to install a dependency using `yarn`.

* docs: added REACT_EDITOR to `Advanced Configuration` section

* Update README.md

* Update launchEditor.js

* add docs for setting up CircleCI for CRA

* Reword

* Adding link to tutorial on code splitting

Link to tutorial on Code Splitting with React Router

* Update README.md

It should be `baz` instead of `bar` on last example.

* Update README.md

Fix broken link to React Router documentation

* Update README.md

- Call `npm run flow --init` won't create a .flowconfig file, it should be `npm run flow init`

* re-add storybook && update the documentation and links

* Change to new documentation domain

Removed Node v4 (CRA only supports Node >= 6)

"ensuring that you web app" ->
"ensuring that your web app"

since CRA now use the latest version of Jest under the hood,
`jest-enzyme` v3.2.0 is now working perfectly fine

Simplified steps for deploying app to `now` as a static site. No need to `serve` script in `package.json` file. As of May 15, 2017, all static deployments on `now` are free and unlimited.

* Disable host check if you don't use proxy

* Add a way to opt out and document it

s/adding-images-and-fonts/adding-images-fonts-and-files/

* update readme with example of include path

* Update README.md

* Hide React Storybook from the User Guide while it's incompatible

* Update README.md

* Correct which .env. files are referenced in docs

* Highlight this is not available until 1.0.0

* Formatting

* Update README.md

* Update README.md

* Add documentation about using code splitting

* Revise docs a bit

* Update README.md

* Update README.md

* Update README.md

* Uncomment merged PRs

* Switch to br

* Update some webpack links

* Add a little about section for PWA

* oops

* fast on subsequent visits

* Add manual proxy config instructions

* hint package.json

* Change to js for comments

* Tune wording

* sw-precache-webpack-plugin, SW registration, manifest.json

* Documentation + a few SW tweaks.

* Added an unregister method, too, just in case.

* More info for the READMEs.

* Add minify to SWPrecacheWebpackPlugin config

* Fix SWPrecacheWebpackPlugin typo

* Fix file references in READMEmd

* Add instructions for testing service-worker locally

* Review feedback

* Some additional PWA metadata

* Use sw-precache-webpack-plugin v0.9.1 for node >=4.0.0 support

* Review feedback.

* Add manifest.json context in a comment.

* Fix typo

* Downgrade to sw-precache-webpack-plugin 0.9.1

* Hide changes in README until 1.0

* Hide changes in User Guide until 1.0

* Hide more docs

* Ignore Moment.js locales by default

* Update README.md

* Support node scripts in BROWSER

Modify OpenBrowser.js to run node scripts specified with the BROWSER environment
variable . If the value of the BROWSER environment variable ends with '.js' a
child process is spawned to execute the script with node.js. Any
arguments passed to npm start are also passed to this script, as well as
the url where the app is served.
The command executed in the child process is:

node <pathToScript> [OPTIONS] <url>

Update User Guide.

* Tweak code style

* Pin dep

* Comment out 0.10 docs

* support different env configs.

* fomrat code

* Hide doc

* Slightly rework the PR

* Remove .env in default template
* Use just one entry in the paths
* Unify env.js and loadEnv.js

* Oops, forgot these folks

* update readme with fix from https://github.com/facebookincubator/create-react-app/issues/1939

* update with better globbing

* added note

* updating with a note and reverting previous changes

* how about this?

* refactor

* added note about new files back in after verifying locally

* spaces back in, sorry was my editor!

* removed note about new files :)

* added bullet about new files issue currently open on node-sass

* Fix instructions for serving with now

Not sure if new, but the `--single` flag is now important.

* Keep it shorter