README: buy me a coffee

README.md

@@ -2,6 +2,8 @@
 
 A [Copier](https://copier.readthedocs.io) template for deploying [Archify Sync](https://gitea.lego-cloud.eu/vscode-extensions/archify-vscode-ext-sync) with [Argo CD](https://argo-cd.readthedocs.io). It renders an environment repository that Argo CD syncs: an app-of-apps, the server's Helm chart (taken from the server repository) and its values. Keep your answers in the environment repository; never hand-edit what Copier renders there.
 
+Free and open source. If it saves you time, you can [buy me a coffee](https://buymeacoffee.com/root.at.skic) ☕
+
 ```text
 cluster/
 ├── 0000-bootstrap/0100-app-of-apps.yml.jinja    # root app 0000-archify-sync-app-of-apps, applied once
@@ -53,3 +55,9 @@ task render:answers  # after editing the environment repo's cluster/copier-answe
 ```
 
 `copier update` needs this repository committed and tagged; the environment repository records the template's version.
+
+## Support
+
+Archify Sync is built and maintained in my spare time. If it helps you, a coffee keeps the releases coming:
+
+[![Buy me a coffee](https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png)](https://buymeacoffee.com/root.at.skic)