Add README and action branding

README.md

@@ -0,0 +1,46 @@
+# Openfire Launcher action
+
+An action for launching [Openfire](https://github.com/igniterealtime/Openfire), an XMPP server implementation, in the context of a Github Action workflow. It's not intended for anything production-facing, or even really user-facing. It's useful for CI-based short-lived actions that need an XMPP server.
+
+## Inputs
+
+### version
+
+Version of Openfire to launch, in the form `a.b.c`, as seen in [Openfire Releases](https://github.com/igniterealtime/Openfire/releases).
+
+example:
+
+```yaml
+      - name: Run Openfire
+        uses: igniterealtime/openfire-launcher
+        with:
+          version: 4.9.0
+```
+
+### daily
+
+Ignores any provided version, and loads the latest daily build of Openfire instead.
+
+example:
+
+```yaml
+      - name: Run Openfire
+        uses: igniterealtime/openfire-launcher
+        with:
+          daily: 'true'
+```
+
+### config
+
+By default, the action launches with the demoboot config (the config file is [here](https://github.com/igniterealtime/Openfire/blob/main/distribution/src/conf/openfire-demoboot.xml), some docs [here](https://download.igniterealtime.org/openfire/docs/latest/documentation/client-minimal-working-example-smack.html#preparations)).
+
+You can pass a different config file in to get alternative or additional config (e.g. adding additional configuration for plugins).
+
+example:
+
+```yaml
+      - name: Run Openfire
+        uses: igniterealtime/openfire-launcher
+        with:
+          config: ./my-config.xml
+```

action.yml

@@ -1,5 +1,7 @@
 name: 'Launch Openfire'
 description: 'Downloads and launches Openfire for use in a workflow'
+branding:
+  color: 'orange'
 inputs:
   version:
     description: 'The version of Openfire to download and launch'