diff --git a/prometheus_grafana/readme.md b/prometheus_grafana/readme.md
index 078bfe0..b337f15 100644
--- a/prometheus_grafana/readme.md
+++ b/prometheus_grafana/readme.md
@@ -447,37 +447,37 @@ groups:
 ```
 </details>
 
-  <details>
-  <summary>prometheus.yml</summary>
-    ```
-    global:
-      scrape_interval:     15s
-      evaluation_interval: 15s
+<details>
+<summary>prometheus.yml</summary>
+```
+global:
+  scrape_interval:     15s
+  evaluation_interval: 15s
 
-    scrape_configs:
-      - job_name: 'nodeexporter'
-        static_configs:
-          - targets: ['nodeexporter:9100']
+scrape_configs:
+  - job_name: 'nodeexporter'
+    static_configs:
+      - targets: ['nodeexporter:9100']
 
-      - job_name: 'cadvisor'
-        static_configs:
-          - targets: ['cadvisor:8080']
+  - job_name: 'cadvisor'
+    static_configs:
+      - targets: ['cadvisor:8080']
 
-      - job_name: 'prometheus'
-        static_configs:
-          - targets: ['localhost:9090']
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
 
-    alerting:
-      alertmanagers:
-      - scheme: http
-        static_configs:
-        - targets: 
-          - 'alertmanager:9093'
+alerting:
+  alertmanagers:
+  - scheme: http
+    static_configs:
+    - targets: 
+      - 'alertmanager:9093'
 
-    rule_files:
-      - '/etc/prometheus/rules/alert.rules'
-    ```
-  </details>
+rule_files:
+  - '/etc/prometheus/rules/alert.rules'
+```
+</details>
 
 test:<br>
 `curl -H 'Content-Type: application/json' -d '[{"labels":{"alertname":"blabla"}}]' https://alert.example.com/api/v1/alerts`