always run on main, and README update

.github/workflows/infra.yaml

@@ -3,12 +3,12 @@ on:
   pull_request:
     branches:
       - main
-  push:
-    branches:
-      - main
     paths:
       - infra/**-playbook.yaml
       - .github/workflows/infra.yaml
+  push:
+    branches:
+      - main
 
 env:
   DEPLOY: ${{ github.ref == 'refs/heads/main' && ((startsWith(github.event.head_commit.message, '[deploy-all]') && 'all') || ('some')) || 'none' }}

README.md

@@ -6,3 +6,5 @@ This repository contains any automations used in deploying *.koval.net services.
 
 All 'managed' infrastructure is deployed and provisioned with [Ansible](https://www.ansible.com/).
 However, some 'unmanaged' (manually managed) resources also exist - primarily everything required for this repository to work (I don't want to make a dependency loop).
+
+Ansible playbooks are ran in alphanumerical order and are expected idempotent.