Update README.md

Added Coronavirus Graphs API under News section.

README.md

@@ -579,6 +579,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Chronicling America](http://chroniclingamerica.loc.gov/about/api/) | Provides access to millions of pages of historic US newspapers from the Library of Congress | No | No | Unknown |
 | [Currents](https://currentsapi.services/) | Latest news published in various news sources, blogs and forums | `apiKey` | Yes | Yes |
 | [Feedbin](https://github.com/feedbin/feedbin-api) | RSS reader | `OAuth` | Yes | Unknown |
+| [Graphs for Coronavirus](https://corona.dnsforfamily.com/api.txt) | Each Country separately and Worldwide Graphs for Coronavirus. Daily updates | No | Yes | Yes |
 | [New York Times](https://developer.nytimes.com/) | Provides news | `apiKey` | Yes | Unknown |
 | [News](https://newsapi.org/) | Headlines currently published on a range of news sources and blogs | `apiKey` | Yes | Unknown |
 | [NPR One](http://dev.npr.org/api/) | Personalized news listening experience from NPR | `OAuth` | Yes | Unknown |