Add owlbot dictionary API (#1024)

README.md

@@ -295,6 +295,7 @@ API | Description | Auth | HTTPS | CORS |
 API | Description | Auth | HTTPS | CORS |
 |---|---|---|---|---|
 | [Merriam-Webster](https://dictionaryapi.com/) | Dictionary and Thesaurus Data | `apiKey` | Yes | Unknown |
+| [OwlBot](https://owlbot.info/) | Definitions with example sentence and photo if available | `apiKey` | Yes | No |
 | [Oxford](https://developer.oxforddictionaries.com/) | Dictionary Data | `apiKey` | Yes | No |
 | [Wordnik](http://developer.wordnik.com) | Dictionary Data | `apiKey` | No | Unknown |
 | [Words](https://www.wordsapi.com/) | Definitions and synonyms for more than 150,000 words | `apiKey` | Yes | Unknown |