feat: collections README.md update

Author: jackhodgkiss

README.md

@@ -1,3 +1,23 @@
-# Ansible Collection - stackhpc.kayobe_automation_workflows
+# Ansible Collection - stackhpc.kayobe_workflows
 
-Documentation for the collection.
+This repository contains `stackhpc.kayobe_workflows` an Ansible Collection. The collection currently includes a role for generating workflows that utilise [stackhpc/kayobe-workflows](https://github.com/stackhpc/kayobe-automation)https://github.com/stackhpc/kayobe-automation within GitHub Actions.
+
+## Included content
+
+Roles:
+* [github](roles/github/README.md) for generating workflows appropriate for GitHub Actions
+
+## Using this collection
+
+Before using the collection, you need to install the collection with the `ansible-galaxy` CLI:
+
+    ansible-galaxy collection install stackhpc.kayobe_workflows
+
+You can also include it in a `requirements.yml` file and install it via `ansible-galaxy collection install -r requirements.yml` using the format:
+
+```yaml
+collections:
+- name: stackhpc.kayobe_workflows
+```
+
+See [Ansible Using collections](https://docs.ansible.com/ansible/latest/user_guide/collections_using.html) for more details.