message: Explain how to gen for flow+ts in the README
diff: [![GitHub license](https://img.shields.io/badge/license-MIT-lightgrey.svg?maxAge=2592000)](https://raw.githubusercontent.com/apollostack/apollo-ios/master/LICENSE) [![npm](https://img.shields.io/npm/v/apollo-codegen.svg)](https://www.npmjs.com/package/apollo-codegen) [![Get on Slack](https://img.shields.io/badge/slack-join-orange.svg)](http://www.apollostack.com/#slack)
  -This is a tool to generate API code based on a GraphQL schema and query documents.
  +This is a tool to generate API code or type annotations based on a GraphQL schema and query documents.
  -It currently only generates Swift code, but we hope to add support for other targets in the future. See [Apollo iOS](https://github.com/apollostack/apollo-ios) for details on the mapping from GraphQL results to Swift types, as well as runtime support for executing queries and mutations.
  +It currently generates Swift code, TypeScript annotations and Flow annotations, we hope to add support for other targets in the future.
  +
  +See [Apollo iOS](https://github.com/apollostack/apollo-ios) for details on the mapping from GraphQL results to Swift types, as well as runtime support for executing queries and mutations.
  ## Usage
  @@ -22,12 +24,21 @@ apollo-codegen download-schema http://localhost:8080/graphql --output schema.jso
  You can use the `header` option to add additional HTTP headers to the request. For example, to include an authentication token, use `--header "Authorization: Bearer <token>"`.
  -To generate Swift code from a set of query definitions in `.graphql` files:
  +This tool will generate Swift code by default from a set of query definitions in `.graphql` files:
  ```sh
  apollo-codegen generate **/*.graphql --schema schema.json --output API.swift
  ```
  +You can also generate type annotations for TypeScript or Flow using the `--target` option:
  +
  +```sh
  +# TypeScript
  +apollo-codegen generate **/*.graphql --schema schema.json --target typescript --output schema.ts
  +# Flow
  +apollo-codegen generate **/*.graphql --schema schema.json --target flow --output schema.flow.js
  +```
  +
  ## Contributing
  [![Build status](https://travis-ci.org/apollostack/apollo-codegen.svg?branch=master)](https://travis-ci.org/apollostack/apollo-codegen)
  