Add users cli commands to docs

docs/content/doc/usage/cli.md

@@ -18,6 +18,7 @@ The following commands are available:
 * [migrate](#migrate)
 * [restore](#restore)
 * [testmail](#testmail)
+* [user](#user)
 * [version](#version)
 * [web](#web)
 
@@ -85,7 +86,7 @@ Usage:
 $ vikunja restore <path to dump zip file>
 {{< /highlight >}}
 
-### testmail
+### `testmail`
 
 Sends a test mail using the configured smtp connection.
 
@@ -94,6 +95,74 @@ Usage:
 $ vikunja testmail <email to send the test mail to>
 {{< /highlight >}}
 
+### `user`
+
+Bundles a few commands to manage users.
+
+#### `user change-status`
+
+Enable or disable a user. Will toggle the current status if no flag (`--enable` or `--disable`) is provided.
+
+Usage:
+{{< highlight bash >}}
+$ vikunja user change-status <user id> <flags>
+{{< /highlight >}}
+
+Flags:
+* `-d`, `--disable`: Disable the user.
+* `-e`, `--enable`: Enable the user.
+
+#### `user create`
+
+Create a new user.
+
+Usage:
+{{< highlight bash >}}
+$ vikunja user create <flags>
+{{< /highlight >}}
+
+Flags:
+* `-a`, `--avatar-provider`: The avatar provider of the new user. Optional.
+* `-e`, `--email`: The email address of the new user.
+* `-p`, `--password`: The password of the new user. You will be asked to enter it if not provided through the flag.
+* `-u`, `--username`: The username of the new user.
+
+#### `user list`
+
+Shows a list of all users.
+
+Usage:
+{{< highlight bash >}}
+$ vikunja user list
+{{< /highlight >}}
+
+#### `user reset-password`
+
+Reset a users password, either through mailing them a reset link or directly.
+
+Usage:
+{{< highlight bash >}}
+$ vikunja user reset-password <flags>
+{{< /highlight >}}
+
+Flags:
+* `-d`, `--direct`: If provided, reset the password directly instead of sending the user a reset mail.
+* `-p`, `--password`: The new password of the user. Only used in combination with --direct. You will be asked to enter it if not provided through the flag.
+
+#### `user update`
+
+Update an existing user.
+
+Usage:
+{{< highlight bash >}}
+$ vikunja user update <user id>
+{{< /highlight >}}
+
+Flags:
+* `-a`, `--avatar-provider`: The new avatar provider of the new user.
+* `-e`, `--email`: The new email address of the user.
+* `-u`, `--username`: The new username of the user.
+
 ### `version`
 
 Prints the version of Vikunja.