Update cloud9 main site

non-free.md

@@ -110,7 +110,7 @@
 - [Bamboo](https://www.atlassian.com/software/bamboo) - Continuous integration server. `⊘ Proprietary` `Java`
 - [BitBucket Server](https://www.atlassian.com/software/bitbucket/enterprise/data-center) - Enterprise-level Git solution similar to GitLab. `⊘ Proprietary` `Java`
 - [Buddy Enterprise](https://buddy.works/) - Git and Continuous Integration/Delivery Platform. `⊘ Proprietary` `Nodejs/Java`
-- [Cloud9](https://c9.io/) - Your development environment, in the cloud. ([Source code](https://github.com/c9/core)) `⊘ Proprietary` `Nodejs`
+- [Cloud9](https://aws.amazon.com/cloud9) - Your development environment, in the cloud. ([Source code](https://github.com/c9/core)) `⊘ Proprietary` `Nodejs`
 - [Crucible](https://www.atlassian.com/software/crucible/overview) - Peer code review application. `⊘ Proprietary` `Java`
 - [JIRA](https://www.atlassian.com/software/jira) - Professional and extensible issue tracker. `⊘ Proprietary` `Java`
 - [Sentry Self-Hosted](https://github.com/getsentry/self-hosted) - Powerful error tracking platform with wide language support and a robust API. ([Source Code](https://github.com/getsentry/sentry)) `BUSL-1.1` `Python/Django`