[TASK] Remove outdated links

README.md

 # Meshviewer
 [![Build Status](https://img.shields.io/travis/com/ffrgb/meshviewer/develop.svg?style=flat-square)](https://travis-ci.com/ffrgb/meshviewer)
 [![Scrutinizer Code Quality](https://img.shields.io/scrutinizer/g/ffrgb/meshviewer/develop.svg?style=flat-square)](https://scrutinizer-ci.com/g/ffrgb/meshviewer/?branch=develop)
-[![Documentation](https://img.shields.io/badge/documentation-online-brightgreen.svg?style=flat-square)](https://doc.meshviewer.org/)
 [![License: AGPL v3](https://img.shields.io/github/license/ffrgb/meshviewer.svg?style=flat-square)](https://www.gnu.org/licenses/agpl-3.0)
 
 Meshviewer is an online visualization app to represent nodes and links on a map for Freifunk open mesh network.
@@ -11,24 +10,6 @@ Meshviewer is an online visualization app to represent nodes and links on a map
 Embedded: https://regensburg.freifunk.net/netz/karte/  
 Standalone: https://regensburg.freifunk.net/meshviewer/
 
-## Documentation
-
-Documentation moved to [doc.meshviewer.org](https://doc.meshviewer.org/).
-
-- [Read online](https://doc.meshviewer.org/)
-- Export as
-  - [PDF](https://doc.meshviewer.org/meshviewer.pdf)
-  - [ePub](https://doc.meshviewer.org/meshviewer.epub)
-  - [Mobi](https://doc.meshviewer.org/meshviewer.mobi)
-
-### [Changelog](https://doc.meshviewer.org/changelog.html)
-
-#### Why move the documentation/changelog?
-
-- Search available
-- Multiple pages
-- Less doc commits, faster changes
-
 ## Sponsoring / Supporting
 
 - [BrowserStack](https://www.browserstack.com/) for providing an awesome testing service for hundreds of browsers