Add Infermedica (#2162)

README.md

@@ -785,6 +785,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Dataflow Kit COVID-19](https://covid-19.dataflowkit.com) | COVID-19 live statistics into sites per hour | No | Yes | Unknown |
 | [Diabetes](http://predictbgl.com/api/) | Logging and retrieving diabetes information | No | No | Unknown |
 | [Healthcare.gov](https://www.healthcare.gov/developers/) | Educational content about the US Health Insurance Marketplace | No | Yes | Unknown |
+| [Infermedica](https://developer.infermedica.com/docs/) | NLP based symptom checker and patient triage API for health diagnosis from text | `apiKey` | Yes | Yes |
 | [LAPIS](https://cov-spectrum.ethz.ch/public) | SARS-CoV-2 genomic sequences from public sources | No | Yes | Yes |
 | [Lexigram](https://docs.lexigram.io/v1/welcome) | NLP that extracts mentions of clinical concepts from text, gives access to clinical ontology | `apiKey` | Yes | Unknown |
 | [Makeup](http://makeup-api.herokuapp.com/) | Makeup Information | No | No | Unknown |