test jellyfin plugin, would be nice

Jellyfin/_template/README.md.template

@@ -0,0 +1,22 @@
+# {{PLUGIN_NAME}}
+
+{{PLUGIN_DESCRIPTION}}
+
+## Build
+
+```bash
+dotnet build -c Release
+```
+
+## Release
+
+Tag and push:
+
+```bash
+git tag jellyfin/{{PLUGIN_SLUG}}/v1.0.0
+git push origin jellyfin/{{PLUGIN_SLUG}}/v1.0.0
+```
+
+Install from the aggregated catalog:
+
+`Jellyfin/manifest.json` (raw URL on your Gitea instance).