add exemple for the user_vault

group_vars/all/user_vault.example

@@ -0,0 +1,9 @@
+---
+uservault_users:
+  - {
+      name: lorem,
+      groups: sudo,
+      shell: "/bin/bash",
+      password_hash: "$6$lvbzekjvbzejbvzvzvbzvbzhvbzbv....aezrfv/", # the string betwenn the first and second `:` in /etc/shadow
+      ssh_key: "ssh-rsa azrekgnbmoienbzrinoien...aoeuzn user@host"
+    }