Rename USDA Nutrients to FoodData Central

The correct name of this API is FoodData Central

README.md

@@ -1116,6 +1116,7 @@ API | Description | Auth | HTTPS | CORS |
 | [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 |
+| [FoodData Central](https://fdc.nal.usda.gov/) | National Nutrient Database for Standard Reference | `apiKey` | Yes | Unknown |
 | [Healthcare.gov](https://www.healthcare.gov/developers/) | Educational content about the US Health Insurance Marketplace | No | Yes | Unknown |
 | [Humanitarian Data Exchange](https://data.humdata.org/) | Humanitarian Data Exchange (HDX) is open platform for sharing data across crises and organisations | 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 |
@@ -1131,7 +1132,6 @@ API | Description | Auth | HTTPS | CORS |
 | [openFDA](https://open.fda.gov) | Public FDA data about drugs, devices and foods | `apiKey` | Yes | Unknown |
 | [Orion Health](https://developer.orionhealth.io/) | Medical platform which allows the development of applications for different healthcare scenarios | `OAuth` | Yes | Unknown |
 | [Quarantine](https://quarantine.country/coronavirus/api/) | Coronavirus API with free COVID-19 live updates | No | Yes | Yes |
-| [USDA Nutrients](https://fdc.nal.usda.gov/) | National Nutrient Database for Standard Reference | `apiKey` | Yes | Unknown |
 
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