✏️ fix typo

severed -> served

optionsreference.md

@@ -7,7 +7,7 @@
 -   `schemes`: (array) The transfer protocol of the API ie `['http']`
 -   `host`: (string) The host (name or IP) serving the API including port if any i.e. `localhost:8080`
 -   `auth`: (boolean, string or object) defines security strategy to use for plugin resources - default: `false`,
--   `cors`: (boolean) whether the swagger.json routes is severed with cors support - default: `false`,
+-   `cors`: (boolean) whether the swagger.json routes is served with cors support - default: `false`,
 
 #### JSON (JSON endpoint needed to create UI)