Add Redash (#2838)

README.md

@@ -267,6 +267,7 @@ API | Description | Auth | HTTPS | CORS |
 | [mailgun](https://www.mailgun.com/) | Email Service | `apiKey` | Yes | Unknown |
 | [markerapi](http://www.markerapi.com/) | Trademark Search | No | No | Unknown |
 | [ORB Intelligence](https://api.orb-intelligence.com/docs/) | Company lookup | `apiKey` | Yes | Unknown |
+| [Redash](https://redash.io/help/user-guide/integrations-and-api/api) | Access your queries and dashboards on Redash | `apiKey` | Yes | Yes |
 | [Smartsheet](https://smartsheet.redoc.ly/) | Allows you to programmatically access and Smartsheet data and account information | `OAuth` | Yes | No |
 | [Square](https://developer.squareup.com/reference/square) | Easy way to take payments, manage refunds, and help customers checkout online | `OAuth` | Yes | Unknown |
 | [SwiftKanban](https://www.digite.com/knowledge-base/swiftkanban/article/api-for-swift-kanban-web-services/#restapi) | Kanban software, Visualize Work, Increase Organizations Lead Time, Throughput & Productivity | `apiKey` | Yes | Unknown |