update README.md

README.md

@@ -1,5 +1,17 @@
 # Ansible Rollout Playbooks
 
+This repository contains a collection of Ansible playbooks and roles for setting up
+a base system and installing Tor.
+
+## Roles
+- **base_setup** - Role to set up a base system
+  - Installs basic packages
+  - Sets time zone
+  - Sets up authorized key for user
+  - Creates user with or without password
+- **system_update** - Role to update the system
+- **tor** - Role to install Tor
+
 ## Plays
 - **playbooks/setup_base_system.yml** - Sets up the base system
   - Can generate passwords with the `generate_user_password` variable