move n8n to non-free.md (#2861)

- fixes https://github.com/awesome-selfhosted/awesome-selfhosted/issues/2860
- https://github.com/n8n-io/n8n/blob/master/LICENSE.md
- the License does not grant to you, the right to Sell the Software.

README.md

@@ -173,7 +173,6 @@ _Related: [Internet of Things (IoT)](#internet-of-things-iot)_
 - [Medusa](https://pymedusa.com/) - Automatic Video Library Manager for TV Shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic. ([Source Code](https://github.com/pymedusa/Medusa)) `GPL-3.0` `Python`
 - [MetaTube](https://github.com/JVT038/MetaTube) `⚠` - A Web GUI to automatically download music from YouTube add metadata from Spotify, Deezer or Musicbrainz. `GPL-3.0` `Python`
 - [MeTube](https://github.com/alexta69/metube) - Web GUI for youtube-dl, with playlist support. Allows downloading videos from dozens of websites. `AGPL-3.0` `Python/Nodejs/Docker`
-- [n8n](https://n8n.io/) - Free node based Workflow Automation Tool. Easily automate tasks across different services. ([Source Code](https://github.com/n8n-io/n8n)) `Apache-2.0` `Nodejs`
 - [nefarious](https://github.com/lardbit/nefarious) - Web application that automates downloading Movies and TV Shows. `GPL-3.0` `Python`
 - [NocoDB](https://www.nocodb.com/) - No-code platform that turns any database into a smart spreadsheet. It can be considered as an Airtable or Smartsheet alternative. ([Source Code](https://github.com/nocodb/nocodb)) `GPL-3.0` `Nodejs`
 - [OliveTin](https://github.com/OliveTin/OliveTin) - OliveTin is a web interface for running Linux shell commands. `AGPL-3.0` `Go`

non-free.md

@@ -8,6 +8,9 @@
 - [userTrack](https://www.usertrack.net/) `⊘ Proprietary` - userTrack is a web analytics platform with heatmaps, session recordings and powerful user segmentation feature. Updated very regularly. ([Demo](https://dashboard.usertrack.net/server/demoLogin.php)) `PHP/MySQL/ReactJS`
 - [UXLens](https://uxlens.com/) `⊘ Proprietary` - UXLens is a website visitor recording software meant for identifying UI issues and fix them to improve user experience. Formerly known as SessionRecord ([Demo](https://console.uxlens.com/test)) `Docker Nodejs`
 
+## Automation
+- [n8n](https://n8n.io/) - Free node based Workflow Automation Tool. Easily automate tasks across different services. ([Source Code](https://github.com/n8n-io/n8n)) `Apache-2.0 with Commons Clause` `Nodejs`
+
 
 ## Content Management Systems (CMS)