Add Indeed (#2732)

README.md

@@ -1009,6 +1009,7 @@ API | Description | Auth | HTTPS | CORS |
 | [DevITjobs UK](https://devitjobs.uk/job_feed.xml) | Jobs with GraphQL | No | Yes | Yes |
 | [Findwork](https://findwork.dev/developers/) | Job board | `apiKey` | Yes | Unknown |
 | [GraphQL Jobs](https://graphql.jobs/docs/api/) | Jobs with GraphQL | No | Yes | Yes |
+| [Indeed](https://developer.indeed.com/) | Jobs search engine | `OAuth` | Yes | Unknown |
 | [Jobs2Careers](http://api.jobs2careers.com/api/spec.pdf) | Job aggregator | `apiKey` | Yes | Unknown |
 | [Jooble](https://us.jooble.org/api/about) | Job search engine | `apiKey` | Yes | Unknown |
 | [Juju](http://www.juju.com/publisher/spec/) | Job search engine | `apiKey` | No | Unknown |