Remove broken links (Take two) (#22904)

source/help/index.markdown

@@ -34,8 +34,8 @@ Have you found an issue in your Home Assistant installation? Please report it. R
 - [Why we can't have the Internet of Nice Things: A home automation primer](https://www.openwest.org/custom/description.php?id=92) at [OpenWest 2017](https://www.openwest.org) - July 2017
 - [Home Automation with Home Assistant](https://github.com/jjmontesl/talk-hass-pydaygalicia2017) at [PyDay Galicia 2017](https://pyday2017.python-vigo.es/gl/) - June 2017
 - [Home Automation with Python](https://www.youtube.com/watch?v=KNFZSSCPUyM) at [GLT 2017](https://glt17.linuxtage.at) - April 2017
-- [Home Assistant workshop](https://github.com/home-assistant/home-assistant-assets/tree/master/german/2017-clt-workshop) at [CLT 2017](https://chemnitzer.linux-tage.de/2017/de/) - March 2017
-- [Home Assistant - Erweiterungen (Platforms/Components)](https://github.com/home-assistant/home-assistant-assets/tree/master/german/2016-puzzle) at [Puzzle ITC](https://www.puzzle.ch/de/) - December 2016
+- [Home Assistant workshop](https://github.com/home-assistant-ecosystem/workshops/tree/main/2017-clt-workshop) at [CLT 2017](https://chemnitzer.linux-tage.de/2017/de/) at [CLT 2017](https://chemnitzer.linux-tage.de/2017/de/) - March 2017
+- [Home Assistant - Erweiterungen (Platforms/Components)](https://github.com/home-assistant-ecosystem/workshops/tree/main/2016-puzzle) at [Puzzle ITC](https://www.puzzle.ch/de/) - December 2016
 - [Automating Your Life - Home Automation](https://slides.com/teagan42/life_automation#/) at Develop Denver 2016 - August
 - [Building Online Communities: Home Assistant](https://medium.com/@gitter/building-online-communities-home-assistant-8818dff671ad#.och4x4rhx) - July 2016
 - [Home Assistant Support 101 - Getting around in Home Assistant](https://www.youtube.com/watch?v=dRfk9JAlPJk) (Slides) - June 2016
@@ -77,7 +77,6 @@ Don't miss the regular [Home Assistant podcasts](https://hasspodcast.io/).
 - [Castálio Podcast - Episódio 102: Marcelo Mello - Red Hat e Automação Residencial com Home Assistant](https://youtu.be/hZq8ucpzjCs) - May 2017
 - [Paulus Schoutsen and Home Assistant - Episode 8](https://codepop.com/open-sourcecraft/episodes/paulus-schoutsen/) - March 2017
 - [Zammad, Home Assistant and Freifunk - are the winner of the Thomas-Krenn-Awards 2017](https://www.thomas-krenn.com/de/tkmag/allgemein/zammad-home-assistant-und-freifunk-das-sind-die-gewinner-des-thomas-krenn-awards-2017/) - March 2017
-- [10 open source software tools for developing IoT applications](https://www.cbronline.com/news/internet-of-things/10-open-source-software-tools-developing-iot-applications/) - March 2017
 - [Home Assistant with Paulus Schoutsen - Episode 94](https://www.podcastinit.com/episode-94-home-assistant-with-paulus-schoutsen/) - January 2017
 - [Episode #11](https://pythonbytes.fm/episodes/show/11/django-2.0-is-dropping-python-2-entirely-pipenv-for-profile-functionality-and-pythonic-home-automation) at minute 15:20 by [Python Bytes](https://pythonbytes.fm/) - January 2017
 - [Now you can hide your smart home on the darknet](https://www.wired.com/2016/07/now-can-hide-smart-home-darknet/) - July 2016