Rename the metric groups

config/prometheus/additional_metrics.yml

-- group: HA Proxy
+- group: Response metrics (HA Proxy)
   priority: 10
   metrics:
   - title: "Throughput"
@@ -19,7 +19,7 @@
     - query_range: 'sum(rate(haproxy_frontend_http_responses_total{code="5xx",%{environment_filter}}[2m])) / sum(rate(haproxy_frontend_http_responses_total{%{environment_filter}}[2m]))'
       label: HTTP Errors
       unit: "%"
-- group: AWS Elastic Load Balancer
+- group: Response metrics (AWS ELB)
   priority: 10
   metrics:
   - title: "Throughput"
@@ -50,7 +50,7 @@
     - query_range: 'sum(aws_elb_httpcode_backend_5_xx_sum{%{environment_filter}}) / sum(aws_elb_request_count_sum{%{environment_filter}})'
       label: HTTP Errors
       unit: "%"
-- group: NGINX
+- group: Response metrics (NGINX)
   priority: 10
   metrics:
   - title: "Throughput"
@@ -80,7 +80,7 @@
     - query_range: 'sum(rate(nginx_responses_total{status_code="5xx", %{environment_filter}}[2m])) / sum(rate(nginx_requests_total{server_zone!="*", server_zone!="_", %{environment_filter}}[2m]))'
       label: HTTP Errors
       unit: "%"
-- group: Kubernetes
+- group: System metrics (Kubernetes)
   priority: 5
   metrics:
   - title: "Memory Usage"