Add HttPlaceholder to IDE/Tools

README.md

@@ -1374,6 +1374,7 @@ See **[Ticketing](#ticketing)**
 - [Eclipse Che](http://www.eclipse.org/che/) - Open source workspace server and cloud IDE. ([Source Code](https://github.com/eclipse/che)) `EPL-1.0` `Docker/Java`
 - [Gitpod](https://gitpod.io/) - Online IDE for GitHub and GitLab. ([Demo](https://gitpod.io/#https://github.com/awesome-selfhosted/awesome-selfhosted), [Source Code](https://github.com/gitpod-io/self-hosted)) `EPL-2.0` `Typescript/Go/Docker`
 - [Hakatime](https://github.com/mujx/hakatime) - WakaTime server implementation with analytics dashboard. `Unlicense` `Haskell`
+- [HttPlaceholder](https://github.com/dukeofharen/httplaceholder) - Quickly mock away any webservice using HttPlaceholder. HttPlaceholder lets you specify what the request should look like and what response needs to be returned. ([Source Code](https://github.com/dukeofharen/httplaceholder)) `MIT` `C#/Vue.js`
 - [ICEcoder](https://icecoder.net/) - ICEcoder is a web IDE / browser based code editor, which allows you to develop websites directly within the web browser. ([Demo](http://demo.icecoder.net/ICEcoder/), [Source Code](https://github.com/icecoder/ICEcoder)) `MIT` `PHP`
 - [JS Bin](http://jsbin.com/) - Open source collaborative web development debugging tool. ([Source Code](https://github.com/jsbin/jsbin)) `MIT` `Nodejs`
 - [Judge0 API](https://api.judge0.com) - Open source API to compile and run source code. ([Source Code](https://github.com/judge0/api)) `GPL-3.0` `Ruby`