Update CORS policy for Open Library

I tried this API out and I was blocked by CORS. Thought it would be helpful to others to quickly update this one.

README.md

@@ -119,7 +119,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Goodreads](https://www.goodreads.com/api) | Books | `apiKey` | Yes | Unknown |
 | [Google Books](https://developers.google.com/books/) | Books | `OAuth` | Yes | Unknown |
 | [LibGen](http://garbage.world/posts/libgen/) | Library Genesis search engine | No | No | Unknown |
-| [Open Library](https://openlibrary.org/developers/api) | Books, book covers and related data | No | Yes | Unknown |
+| [Open Library](https://openlibrary.org/developers/api) | Books, book covers and related data | No | Yes | No |
 | [Penguin Publishing](http://www.penguinrandomhouse.biz/webservices/rest/) | Books, book covers and related data | No | Yes | Unknown |
 | [Rig Veda](https://aninditabasu.github.io/indica/html/rv.html) | Gods and poets, their categories, and the verse meters, with the mandal and sukta number | No | Yes | Unknown |
 | [Vedic Society](https://aninditabasu.github.io/indica/html/vs.html) | Descriptions of all nouns (names, places, animals, things) from vedic literature | No | Yes | Unknown |