add setcookie doc

Author: ricardo-devis-agullo

website/docs/components/the-server.js.md

@@ -346,6 +346,7 @@ Context aggregates request data, and the registry's context. It consists of the
 | `requestHeaders`   | `object`             | represents the original request headers. When component is rendered client side this will be what is sent from the browser, when rendered server side, using oc-client, this will contain whatever the client has been configured to forward                                  |
 | `setEmptyResponse` | `function`           | Sets the response to be completely empty (included container and renderInfo). Recommended is to return it: `return context.setEmptyResponse();`                                                                                                                               |
 | `setHeader`        | `function`           | Needed to set custom headers. Signature is (name, value)                                                                                                                                                                                                                      |
+| `setCookie`        | `function`           | Needed to set cookies. Signature is (name, value, options?) where options supports all standard Express cookie options (httpOnly, secure, maxAge, etc.)                                                                                                                       |
 | `staticPath`       | `string`             | represents the path to static resources i.e. images, styles, javascript files. This is required to [reference static resources to the view](#add-static-resource-to-the-component) and **already includes a final slash** (this is relevant due to how S3 handles filePaths). |
 
 ### renderComponent API