remove koding.com

no more free aws hosted instances

README.md

@@ -474,7 +474,6 @@ Table of Contents
    * [c9.io](https://c9.io/) — IDE in a browser. Incorporates an Ubuntu virtual machine and in-browser terminal access. Integrates with GitHub and BitBucket, but also adds SFTP and generic Git access
    * [codeanywhere.com](https://codeanywhere.com/) — Full IDE in the browser and mobile apps. Access FTP, SFTP, Dropbox, Google Drive, GitHub, and BitBucket. Hosted virtual machines with terminal access. Collaboration features like share links, live editing, permissions, and version tracking
    * [codenvy.com](https://codenvy.com/) — IDE and automated developer workspaces in a browser, collaborative, Git/SVN integration, build and run your app in customizable Docker-based runners (free tier includes: 4 GB RAM, always-on machines, ability to run multiple machines simultaneously), pre-integrated deploy to Google Apps
-   * [koding.com](https://koding.com/) — IDE in a browser. Full sudo access, VMs hosted on Amazon EC2, SSH Access, Real EC2 VM, no LXCs/hypervising, Custom sub-domains, Publicly accessible IP, Ubuntu 14.04, IDE/Terminal/Collaboration
    * [nitrous.io](https://nitrous.io/) — Private Linux instance(s) with interactive collaboration, free for 2 hours/day. {[More Details](http://goo.gl/J1Zbsg)}
    * [visualstudio.com](http://visualstudio.com/community) — Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more)
    * [code.visualstudio.com](http://code.visualstudio.com/) — Build and debug modern web and cloud applications. Code is free, Open Source and available on your favorite platform, Linux, Mac OSX and Windows