Add CryptingUp (#2138)

README.md

@@ -310,6 +310,7 @@ API | Description | Auth | HTTPS | CORS |
 | [CoinRanking](https://developers.coinranking.com/api/documentation) | Live Cryptocurrency data | `apiKey` | Yes | Unknown |
 | [Coinremitter](https://coinremitter.com/docs) | Cryptocurrencies Payment & Prices | `apiKey` | Yes | Unknown |
 | [CoinStats](https://documenter.getpostman.com/view/5734027/RzZ6Hzr3?version=latest) | Crypto Tracker | No | Yes | Unknown |
+| [CryptingUp](https://www.cryptingup.com/apidoc/#introduction) | Cryptocurrency data | No | Yes | Unknown |
 | [CryptoCompare](https://www.cryptocompare.com/api#) | Cryptocurrencies Comparison | No | Yes | Unknown |
 | [CryptoMarket](https://developers.cryptomkt.com) | Cryptocurrencies Trading platform | `apiKey` | Yes | Yes |
 | [Cryptonator](https://www.cryptonator.com/api/) | Cryptocurrencies Exchange Rates | No | Yes | Unknown |