treewide: fix typos

nixos/modules/virtualisation/azure-common.nix

@@ -26,7 +26,7 @@ in
 
     # Enable cloud-init by default for waagent.
     # Otherwise waagent would try manage networking using ifupdown,
-    # which is currently not availeble in nixpkgs.
+    # which is currently not available in nixpkgs.
     services.cloud-init.enable = true;
     services.cloud-init.network.enable = true;
     systemd.services.cloud-config.serviceConfig.Restart = "on-failure";

nixos/modules/virtualisation/azure-image.nix

@@ -105,7 +105,7 @@ in
       splashImage = null;
       # For Gen 1 VM, configurate grub output to serial_com0.
       # Not needed for Gen 2 VM wbere serial_com0 does not exist,
-      # and outputing to console is enough to make Azure Serial Console working
+      # and outputting to console is enough to make Azure Serial Console working
       extraConfig = lib.mkIf (!efiSupport) ''
         serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
         terminal_input --append serial

nixos/modules/virtualisation/waagent.nix

@@ -67,7 +67,7 @@ let
         convert =
           attrs:
           pipe (recurse [ ] attrs) [
-            # Filter out null values and emoty lists
+            # Filter out null values and empty lists
             (filter (kv: kv.value != null && kv.value != [ ]))
             # Transform to Key=Value form, then concatenate
             (map (kv: "${kv.name}=${transform kv.value}"))