Add Quotable API (#1425)

README.md

@@ -645,6 +645,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Medium](https://github.com/Medium/medium-api-docs) | Community of readers and writers offering unique perspectives on ideas | `OAuth` | Yes | Unknown |
 | [NaMoMemes](https://github.com/theIYD/NaMoMemes) | Memes on Narendra Modi | No | Yes | Unknown |
 | [Programming Quotes](https://github.com/skolakoda/programming-quotes-api) | Programming Quotes API for open source projects | No | Yes | Unknown |
+| [Quotable Quotes](https://github.com/lukePeavey/quotable) | Quotable is a free, open source quotations API | No | Yes | Unknown |
 | [Quote Garden](https://pprathameshmore.github.io/QuoteGarden/) | REST API for more than 5000 famous quotes | No | Yes | Unknown |
 | [Quotes on Design](https://quotesondesign.com/api/) | Inspirational Quotes | No | Yes | Unknown |
 | [taylor.rest](https://taylor.rest) | REST API for random Taylor Swift quotes | No | Yes | No |