chore(docs): initial readme

README.md

@@ -1,3 +1,54 @@
 # Ansible Collection - blinklabs.cardano
 
-Ansible playbooks and roles to install Cardano services of various types
+Ansible playbooks and roles to install Cardano services of various types. To
+start, this will use Docker images for managing and orchestrating the services.
+
+## Usage
+
+This playbook is published to Ansible Galaxy. The best way to consume it is
+using normal methods, documented under
+[installing collections](https://docs.ansible.com/ansible/latest/collections_guide/collections_installing.html).
+
+Inside this collection are several roles.
+
+- `blinklabs.cardano.cardano_db_sync`
+- `blinklabs.cardano.cardano_node`
+- `blinklabs.cardano.cardano_node_api`
+- `blinklabs.cardano.kupo`
+- `blinklabs.cardano.ogmios`
+- `blinklabs.cardano.snek`
+- `blinklabs.cardano.tx_submit_api`
+
+Each role is documented independently under the roles directory.
+
+While not explicitly required as dependencies, we recommend installing Docker
+and the `docker` python module using the roles from `geerlingguy` on Galaxy.
+
+```yaml
+    - name: nodePlaybook | Include geerlingguy.pip role
+      ansible.builtin.include_role:
+        name: geerlingguy.pip
+        apply:
+          tags:
+            - pip
+      vars:
+        pip_install_packages:
+          - name: docker
+      tags:
+        - always
+
+    - name: nodePlaybook | Include geerlingguy.docker role
+      ansible.builtin.include_role:
+        name: geerlingguy.docker
+        apply:
+          tags:
+            - docker
+      vars:
+        docker_install_compose: false
+        docker_apt_arch: "{{ { 'aarch64': 'arm64', 'x86_64': 'amd64' }[ansible_facts.architecture] }}"
+        docker_users: "{{ DOCKER_USERS | default(ansible_user) }}"
+        docker_daemon_options:
+          log-driver: "local"
+      tags:
+        - always
+```