* Update README.md with a note that reminds users to prepend REACT_APP_ to their environment variables. 
* Based on #865, where Dan Abramov suggests the person who filed the issue create a PR with these changes.
* Took the language from [Adding Custom Environment Variables](https://github.com/facebookincubator/create-react-app/tree/master/packages/react-scripts/template#adding-custom-environment-variables)

Replace `provide a lot value` with `provide a lot of value`.

* use safer/more aesthetic syntax

* fix typo

The launch configuration code provided is not compatible with VSCode since version 1.19.
The proposed documentation change is based on the response by a VSCode team member.

References:
https://github.com/facebookincubator/create-react-app/issues/3602#issuecomment-352075571
https://github.com/Microsoft/vscode/issues/40293#issuecomment-352017028

Replaced `it's` with `its`

the code got updated from `detect()` to `choosePort` while the comment did not.

Fix another dead link

* docs: adding section about debugging tests

* docs: removing node-inspector references

* docs: replacing terminal command with npm script

* Update README.md

* improve eject message

* cross os implementation

* extra watch options regex to react-dev-utils

* fix regex

* add test

* fix eslint error

* include react-dev-utils test in CI script

* attempt to fix import error

* attempt to fix error on CI

* Update .eslintrc

 - react-scripts@1.0.17

"subway" by itself is not a proper noun

* Add link to VS Code troubleshooting guide

* Update README.md

Fixed a small grammatical issue that I noticed while browsing the README today

 - create-react-app@1.4.3
 - react-dev-utils@4.2.1
 - react-scripts@1.0.16

 - babel-preset-react-app@3.1.0
 - react-dev-utils@4.2.0
 - react-error-overlay@3.0.0
 - react-scripts@1.0.15

* Change template manifest start_url to dot to make it react-router friendly

* Revert "Change template manifest start_url to dot to make it react-router friendly"

This reverts commit 02f53e81.

* Add a note about PWA manifest and client-side routing

instead of using `&&` to run multiple commands in `package.json`, guide users to use `npm-run-all`