Make the prometheus config file ignored by git

tools/prometheus/prometheus.yml.example

@@ -0,0 +1,18 @@
+---
+global:
+  scrape_interval: 15s  # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+
+scrape_configs:
+  - job_name: 'awx'
+    static_configs:
+      - targets: ['awx1:8043']  # or haproxy:8043 in cluster env
+    tls_config:
+      insecure_skip_verify: true
+    metrics_path: /api/v2/metrics
+    scrape_interval: 5s
+    scheme: https
+    params:
+      format: ['txt']
+    basic_auth:
+      username: admin  # change this
+      password: password  # change this