Add Ubuntu

Author: NexusSfan

index.html

@@ -17,7 +17,7 @@
 Signed-By: /usr/share/keyrings/NexusSfan.pgp
 </code>
 
-Where <code>[system]</code> can be <code>debian</code> or <code>devuan</code> depending if you have systemd or not.
+Where <code>[system]</code> can be <code>debian</code>, <code>devuan</code>, or <code>ubuntu</code>.
 
 Now, run <code>curl -fsSL https://mrchicken.nexussfan.cz/publickey.asc | gpg --dearmor | sudo tee /usr/share/keyrings/NexusSfan.pgp > /dev/null</code>
 This will set up the publickey.