* Replace zeit.co/new → zeit.co/import

* Update deployment.md

* Find/Replace "Deploy it to the cloud..."

* Find/Replace "Deploy it to the cloud..." (no colon)

* Find/Replace "Deploy it to the cloud..." for firebase

* Convert remaining ones

* Storybook deployment

* Update with-stripe-typescript

* Update contributing.md

* Remove `now`

* Update examples/with-stripe-typescript/README.md
Co-Authored-By: NLuis Alvarez D. <luis@zeit.co>

* npx create → npm init

* Fix inconsistent instructions

* Update amp-first

* Update with-graphql-react

* with-firebase-cloud-messaging

* Update with-higher-order-component

* change create-next-app url

* Update create-next-app instruction

* Update instructions to use npm instead of npx

* Move "the idea behind the example" to top

* Rename

* Rename

* Update contributing.md with a README template

- Correct the path to the compiled Next binary
- Code to reveal which pages are avaliable within an example
- Preferred way of testing an external application with a locally compiled Next
- Add markdown code annotations

As per https://twitter.com/pierrevanmart/status/1109030783405248513

The current contributing.md instructions are outdated since the project uses yarn.

The problem:
Without installing yarn we have the following error/output:

`lerna ERR! yarn run prepublish exited ENOENT in 'next-server'`

Adding new instructions on how to install and run the project.

- Implements Lerna
- Moves all source code into `packages/next`
- Keeps integration tests in the root directory

* Add contributing.md

* Only reload example app on server changes