Update README.md

Author: tiotdev

README.md

@@ -1,2 +1,13 @@
-# tf-public-api
- Public API for TravelFeed
+# Public GraphQL API for TravelFeed
+
+Get your API key [in your TravelFeed Dashboard](https://travelfeed.io/dashboard) and use the API on https://api.travelfeed.io/graphql/. Send then API key as Authorization header.
+
+You can find a GraphQL playground at https://api.travelfeed.io/graphql and explore the schema.
+
+This readonly API is limited to retrieving your own posts.
+
+# Deploy it yourself
+
+This API is using serverless for deployment on AWS lambda. If you would like to run it yourself, configure a `.env` file with a MONGO_URL variable to your database and run `npm run dev` to start the development server. Deploy to AWS with `npm run deploy`.
+
+You can set different environment variables by using `.env.development` and `.env.production` files. Remember to set `NODE_ENV=production` in the production environment configruation if you would like to have playground working in your deployment.