README.md updated.

README.md

@@ -8,3 +8,29 @@ A Django-managed password is a hashed password stored by Django.
 See [Password management in Django][1] for more information.
 
 [1]: https://docs.djangoproject.com/en/5.0/topics/auth/passwords/
+
+## Library Usage
+
+See:
+
+- [docs.rs](https://docs.rs/clap/latest/django-auth/)
+- [examples](examples/)
+
+## CLI Tool Usage
+
+`cargo run --example auth`:
+
+```example
+Authenticate or generate Django-managed passwords
+
+Usage: auth <COMMAND>
+
+Commands:
+  encode  Encode a password in Django-style
+  verify  Verify a Django stored hashed password
+  help    Print this message or the help of the given subcommand(s)
+
+Options:
+  -h, --help     Print help
+  -V, --version  Print version
+```