Added materials index to helm chart. #skip-ci

ops/helm/nomad/templates/nomad-configmap.yml

@@ -38,6 +38,7 @@ data:
       host: "{{ .Values.elastic.host }}"
       port: {{ .Values.elastic.port }}
       index_name: "{{ .Values.dbname }}"
+      materials_index_name: "{{ .Values.dbname }}_materials"
     mongo:
       host: "{{ .Values.mongo.host }}"
       port: {{ .Values.mongo.port }}