diff --git a/_data/rules.yml b/_data/rules.yml
index 4ec03cb..8ad6eb5 100644
--- a/_data/rules.yml
+++ b/_data/rules.yml
@@ -1,3 +1,12 @@
+
+#
+# The following yaml cannot be copy-pasted to Prometheus configuration.
+#     Please navigate to https://awesome-prometheus-alerts.grep.to/rules instead.
+#
+# Contributing guidelines:
+#      https://github.com/samber/awesome-prometheus-alerts/blob/master/CONTRIBUTING.md
+#
+
 groups:
   - name: Basic resource monitoring
     services: