Recipe-scrapers

- kitchenstories: fix / workaround: unescape HTML entities in the site's schema.org script block (563)

Thanks hay-kot for the issue report!

- Add support for allrecipes.com personal recipes (559)

With credit to cydanil for the contribution

* Add support for Im-Worthy (560)
* TheKitchn: Migrate fields from custom selector implementations to schema.org retrieval (558)

Thanks brett cydanil!

- Refactor: use `responses` library for unit test data loading and request mocking (552)
- Bugfix: add retrieval of 'description' field to allrecipes, chefkoch scrapers (556)
- Bugfix: ensure 'scraper' variable is declared within scrape_html method (557)

- Adds [MarleySpoon support for the Belgian, Dutch, Austrian and Swedish sites](https://github.com/hhursev/recipe-scrapers/pull/555)

Creds robvdw2

- Add support for KitchenStories (549)
- Add support for MarleySpoon (548)

Thanks to astappiev for adding both of these.