fix code block format

docs/content/faq.md

@@ -120,20 +120,20 @@ To solve this, specify the `interface_name` and `gw_priority` explicitly in your
 
 ```yaml
 services:
-    wg-easy:
+  wg-easy:
-        # ... other configuration ...
+    # ... other configuration ...
-        networks:
+    networks:
-            wg:
+      wg:
-                interface_name: eth0
+        interface_name: eth0
-                gw_priority: 1
+        gw_priority: 1
-                ipv4_address: 10.42.42.42
+        ipv4_address: 10.42.42.42
-            nginx:
+      nginx:
-                interface_name: eth1
+        interface_name: eth1
-                gw_priority: 0
+        gw_priority: 0
 
 networks:
-    wg:
+  wg:
-        # ... wg network config ...
+    # ... wg network config ...
-    nginx:
+  nginx:
-        external: true
+    external: true
 ```