Add Hoppscotch (#371)

README.md

@@ -507,6 +507,7 @@
 | [Gorest](https://gorest.co.in/) | Online REST API for Testing and Prototyping | `OAuth` | Yes | Unknown |
 | [Hasura](https://hasura.io/opensource/) | GraphQL and REST API Engine with built in Authorization | `apiKey`| Yes | Yes |
 | [Heroku](https://devcenter.heroku.com/articles/platform-api-reference/) | REST API to programmatically create apps, provision add-ons and perform other task on Heroku | `OAuth` | Yes | Yes |
+| [Hoppscotch](https://hoppscotch.io/) | A lightweight, fast, and customizable app for testing and designing APIs. A free, fast, and beautiful  | No | Yes | Unknown |
 | [Host.io](https://host.io) | Domains Data API for Developers | `apiKey`| Yes | Yes |
 | [HTTP2.Pro](https://http2.pro/doc/api) | Test endpoints for client and server HTTP/2 protocol support | No | Yes | Unknown |
 | [HTTPie](https://httpie.io) | a free command-line HTTP client for the API era | No | Yes | Unknown |