Update README.md

Author: John Egan

README.md

@@ -1,106 +1,7 @@
-# OpenAPI Typescript Codegen
+# OpenAPI TypeScript Codegen
 
-[![NPM][npm-image]][npm-url]
-[![License][license-image]][license-url]
-[![Coverage][coverage-image]][coverage-url]
-[![Coverage][coverage-image]][coverage-url]
-[![Downloads][downloads-image]][downloads-url]
-[![Build][build-image]][build-url]
+Fork of [ferdikoomen/openapi-typescript-codegen](https://github.com/ferdikoomen/openapi-typescript-codegen). See that repository for documentation.
 
-> Node.js library that generates Typescript clients based on the OpenAPI specification.
+## List of changes
 
-## Why?
-- Frontend ❤️ OpenAPI, but we do not want to use JAVA codegen in our builds
-- Quick, lightweight, robust and framework-agnostic 🚀
-- Supports generation of TypeScript clients
-- Supports generations of Fetch, Node-Fetch, Axios, Angular and XHR http clients
-- Supports OpenAPI specification v2.0 and v3.0
-- Supports JSON and YAML files for input
-- Supports generation through CLI, Node.js and NPX
-- Supports tsc and @babel/plugin-transform-typescript
-- Supports aborting of requests (cancelable promise pattern)
-- Supports external references using [json-schema-ref-parser](https://github.com/APIDevTools/json-schema-ref-parser/)
-
-## Install
-
-```
-npm install openapi-typescript-codegen --save-dev
-```
-
-## Usage
-
-```
-$ openapi --help
-
-  Usage: openapi [options]
-
-  Options:
-    -V, --version             output the version number
-    -i, --input <value>       OpenAPI specification, can be a path, url or string content (required)
-    -o, --output <value>      Output directory (required)
-    -c, --client <value>      HTTP client to generate [fetch, xhr, node, axios, angular] (default: "fetch")
-    --name <value>            Custom client class name
-    --useOptions              Use options instead of arguments
-    --useUnionTypes           Use union types instead of enums
-    --exportCore <value>      Write core files to disk (default: true)
-    --exportServices <value>  Write services to disk (default: true)
-    --exportModels <value>    Write models to disk (default: true)
-    --exportSchemas <value>   Write schemas to disk (default: false)
-    --indent <value>          Indentation options [4, 2, tab] (default: "4")
-    --postfixServices         Service name postfix (default: "Service")
-    --postfixModels           Model name postfix
-    --request <value>         Path to custom request file
-    -h, --help                display help for command
-
-  Examples
-    $ openapi --input ./spec.json --output ./generated
-    $ openapi --input ./spec.json --output ./generated --client xhr
-```
-
-## Docker usage
-
-To build the Docker container, execute the following command:
-
-```
-docker build . --tag openapi-typescript-codegen
-```
-
-After this is done, you can execute the CLI commands:
-
-```
-docker run openapi-typescript-codegen --help
-docker run openapi-typescript-codegen --input sample.yaml --output client
-```
-
-Documentation
-===
-- [Basic usage](docs/basic-usage.md)
-- [OpenAPI object](docs/openapi-object.md)
-- [Client instances](docs/client-instances.md) `--name`
-- [Argument vs. Object style](docs/arguments-vs-object-style.md) `--useOptions`
-- [Enums vs. Union types](docs/enum-vs-union-types.md) `--useUnionTypes`
-- [Runtime schemas](docs/runtime-schemas.md) `--exportSchemas`
-- [Enum with custom names and descriptions](docs/custom-enums.md)
-- [Nullable props (OpenAPI v2)](docs/nullable-props.md)
-- [Authorization](docs/authorization.md)
-- [External references](docs/external-references.md)
-- [Canceling requests](docs/canceling-requests.md)
-- [Custom request file](docs/custom-request-file.md)
-
-Support
-===
-- [Babel support](docs/babel-support.md)
-- [Axios support](docs/axios-support.md)
-- [Angular support](docs/angular-support.md)
-- [Node-Fetch support](docs/node-fetch-support.md)
-
-[npm-url]: https://npmjs.org/package/openapi-typescript-codegen
-[npm-image]: https://img.shields.io/npm/v/openapi-typescript-codegen.svg
-[license-url]: LICENSE
-[license-image]: http://img.shields.io/npm/l/openapi-typescript-codegen.svg
-[coverage-url]: https://codecov.io/gh/ferdikoomen/openapi-typescript-codegen
-[coverage-image]: https://img.shields.io/codecov/c/github/ferdikoomen/openapi-typescript-codegen.svg
-[downloads-url]: http://npm-stat.com/charts.html?package=openapi-typescript-codegen
-[downloads-image]: http://img.shields.io/npm/dm/openapi-typescript-codegen.svg
-[build-url]: https://circleci.com/gh/ferdikoomen/openapi-typescript-codegen/tree/master
-[build-image]: https://circleci.com/gh/ferdikoomen/openapi-typescript-codegen/tree/master.svg?style=svg
+1. Headers are always optional, whether the Open API JSON says they are required or not.