Added Documize non-free edtion (#1052)

* Added Documize non-free edtion

* Update non-free.md

* Update Documize Description

non-free.md

@@ -99,6 +99,7 @@
   * [Cloud9](https://c9.io/) `⊘ Proprietary` - Your development environment, in the cloud ([Source code](https://github.com/c9/core)) `Nodejs`
   * [Confluence](https://www.atlassian.com/software/confluence) `⊘ Proprietary` - A team collaboration software `Java`
   * [Crucible](https://www.atlassian.com/software/crucible/overview) `⊘ Proprietary` - A peer code review application `Java`
+  * [Documize](https://documize.com) `⊘ Proprietary` - Modern docs & wiki software built for software team collaboration. `Go`
   * [JIRA](https://www.atlassian.com/software/jira) `⊘ Proprietary` - A professional and extensible issue tracker `Java`
   * [RhodeCode](https://rhodecode.com) `⊘ Proprietary` - On-premise Source Code Management for Mercurial, Git & Subversion. `Python`
   * [Stash](https://www.atlassian.com/software/stash) `⊘ Proprietary` - An enterprise-level Git solution similar to GitLab `Java`