Add maintainer to macgruber Chart.yaml

Author: gerkElznik

charts/macgruber/Chart.yaml

@@ -22,3 +22,7 @@ version: 0.1.1
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
 appVersion: "0.1.0"
+
+maintainers:
+- name: gerkElznik
+  email: 69826913+gerkElznik@users.noreply.github.com