message: docs (middleware-cors): Improve readme
diff: -Middleware Cors
  +Middleware CORS
  =======
  A CORS middleware for [Marble.js](https://github.com/marblejs/marble).
  ## Usage
  -Example of using this middleware on a GET route.
  +Example to allow incoming requests.
  -```javascript
  -import { cors$ } from '@marblejs/middleware-cors';
  -
  -const foo$ = EffectFactory
  - .matchPath('/foo/:id')
  - .matchType('GET')
  - .use(req$ => req$.pipe(
  - use(cors$({
  - origin: 'https://foo.bar',
  - }));
  - // ...
  - ));
  -```
  -
  -Example to allow all incoming requests.
  -
  -```javascript
  +```typescript
  import { cors$ } from '@marblejs/middleware-cors';
  const middlewares = [
  @@ -31,9 +15,9 @@ const middlewares = [
  cors$({
  origin: '*',
  methods: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS'],
  - withCredentials: false,
  optionsSuccessStatus: 204,
  allowHeaders: '*',
  + maxAge: 3600,
  })
  ];
  @@ -46,4 +30,20 @@ const effects = [
  const app = httpListener({ middlewares, effects });
  ```
  +## Available options
  +
  +To configure CORS middleware you can follow this interface.
  +
  +```typescript
  +interface CORSOptions {
  + origin?: string | string[] | RegExp;
  + methods?: HttpMethod[];
  + optionsSuccessStatus?: HttpStatus;
  + allowHeaders?: string | string[];
  + exposeHeaders?: string[];
  + withCredentials?: boolean;
  + maxAge?: number;
  +}
  +```
  +
  License: MIT
  