Add Udemy (instructor) (#2603)

README.md

@@ -1143,6 +1143,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Quotes on Design](https://quotesondesign.com/api/) | Inspirational Quotes | No | Yes | Unknown |
 | [Stoicism Quote](https://github.com/tlcheah2/stoic-quote-lambda-public-api) | Quotes about Stoicism | No | Yes | Unknown |
 | [Traitify](https://app.traitify.com/developer) | Assess, collect and analyze Personality | No | Yes | Unknown |
+| [Udemy(instructor)](https://www.udemy.com/developers/instructor/) | API for instructors on Udemy | `apiKey` | Yes | Unknown |
 | [Vadivelu HTTP Codes](https://vadivelu.anoram.com/) | On demand HTTP Codes with images | No | Yes | No |
 | [Zen Quotes](https://zenquotes.io/) | Large collection of Zen quotes for inspiration | No | Yes | Yes |