add README and presentation

README.md

@@ -0,0 +1,14 @@
+## Nextcloud installer script
+The lab guide is condensed into a script so Nextcloud can be installed  in less than 3 minutes by executing only one command and setting the admin user credentials.
+
+Connect via SSH to your Uberspace an then run:
+
+```
+bash -c "$(wget -q -O - https://github.com/EV21/uberspace-helper/raw/main/uberspace-nextcloud-installer.sh)"
+```
+
+## Demo
+
+![Nextcloud-Installer-Demo][nextcloud-installer-demo]
+
+[nextcloud-installer-demo]: ./presentation/uberspace-nextcloud-installer.gif