Update hassio doc

nextcloud_backup/.README.j2

@@ -2,7 +2,7 @@
 
 [![Release][release-shield]][release] ![Project Stage][project-stage-shield] ![Project Maintenance][maintenance-shield]
 
-[![Discord][discord-shield]][discord] [![Community Forum][forum-shield]][forum]
+[![Community Forum][forum-shield]][forum]
 
 [![Buy me a coffee][buymeacoffee-shield]][buymeacoffee]
 
@@ -15,49 +15,9 @@ Auto backup can be configure with the web interface.
 
 [Click here for the full documentation][docs]
 
-{% if channel == "edge" %}
-## WARNING! THIS IS AN EDGE VERSION!
 
-This Hass.io Add-ons repository contains edge builds of add-ons. Edge builds
-add-ons are based upon the latest development version.
-
-- They may not work at all.
-- They might stop working at any time.
-- They could have a negative impact on your system.
-
-This repository was created for:
-
-- Anybody willing to test.
-- Anybody interested in trying out upcoming add-ons or add-on features.
-- Developers.
-
-If you are more interested in stable releases of our add-ons:
-
-<https://github.com/hassio-addons/repository>
-
-{% endif %}
-{% if channel == "beta" %}
-## WARNING! THIS IS A BETA VERSION!
-
-This Hass.io Add-ons repository contains beta releases of add-ons.
-
-- They might stop working at any time.
-- They could have a negative impact on your system.
-
-This repository was created for:
-
-- Anybody willing to test.
-- Anybody interested in trying out upcoming add-ons or add-on features.
-
-If you are more interested in stable releases of our add-ons:
-
-<https://github.com/hassio-addons/repository>
-
-{% endif %}
 [buymeacoffee-shield]: https://www.buymeacoffee.com/assets/img/guidelines/download-assets-sm-2.svg
 [buymeacoffee]: https://www.buymeacoffee.com/seb6596
-[discord-shield]: https://img.shields.io/discord/478094546522079232.svg
-[discord]: https://discord.me/hassioaddons
 [docs]: {{ repo }}/blob/{{ version }}/README.md
 [forum-shield]: https://img.shields.io/badge/community-forum-brightgreen.svg
 [forum]: https://community.home-assistant.io/