Add COVID-19 Tracker Sri Lanka (#2377)

README.md

@@ -865,6 +865,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Covid-19 Government Response](https://covidtracker.bsg.ox.ac.uk) | Government measures tracker to fight against the Covid-19 pandemic | No | Yes | Yes |
 | [Covid-19 JHU CSSE](https://nuttaphat.com/covid19-api/) | Open-source API for exploring Covid19 cases based on JHU CSSE | No | Yes | Yes |
 | [COVID-19 Tracker Canada](https://api.covid19tracker.ca/docs/1.0/overview) | Details on Covid-19 cases across Canada | No | Yes | Unknown |
+| [COVID-19 Tracker Sri Lanka](https://www.hpb.health.gov.lk/en/api-documentation) | Provides situation of the COVID-19 patients reported in Sri Lanka | No | Yes | Unknown |
 | [COVID-ID](https://data.covid19.go.id/public/api/prov.json) | Indonesian government Covid data per province | No | Yes | Yes |
 | [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 | `OAuth` | No | Unknown |