README doc update (#156)

- README doc update

README.md

@@ -14,43 +14,9 @@
 
 🚨 THIS IS A WIP - CONTRIBUTORS WELCOME 😍
 
-## Setup
+## Documentation 📖
 
-You'll need an [Elastic Path Commerce Cloud account](https://dashboard.elasticpath.com) to run this store.
-
-Run the following commands in your Terminal:
-
-```bash
-gatsby new gatsby-demo-store https://github.com/moltin/gatsby-demo-store
-cd gatsby-demo-store
-yarn
-```
-
-Once you have the project setup, you can now configure the ENV variables required to run the project.
-
-⚠️ You will need to create an account with [Algolia](https://algolia.com) for search and [Algolia places](https://community.algolia.com/places). Algolia is used to power the search page and Algolia places is used during the checkout process for quick address lookup.
-
-Create a `.env` file in the root directory and add the following with your secrets:
-
-```dosini
-GATSBY_MOLTIN_CLIENT_ID=
-GATSBY_STRIPE_PUBLISHABLE_KEY=
-GATSBY_ALGOLIA_PLACES_APP_ID=
-GATSBY_ALGOLIA_PLACES_API_KEY=
-GATSBY_ALGOLIA_INDEX_NAME=
-ALGOLIA_ADMIN_KEY=
-GATSBY_ALGOLIA_API_KEY=
-GATSBY_ALGOLIA_APP_ID=
-GATSBY_ITEMS_PER_PAGE=
-```
-
-You must also configure Stripe inside the [Dashboard](https://dashboard.elasticpath.com).
-
-Now you're ready to go!
-
-```bash
-yarn dev
-```
+- [Gatsby Demo Store Documentation](https://documentation.elasticpath.com/commerce-cloud/docs/developer/get-started/gatsby-demo-store.html)
 
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