Fix link to custom configuration (#1814)

docs/examples/customization/configuration-snippets/README.md

@@ -1,6 +1,6 @@
 
 ## Ingress
-The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at [this example](/examples/customization/custom-headers/nginx).
+The Ingress in this example adds a custom header to Nginx configuration that only applies to that specific Ingress. If you want to add headers that apply globally to all Ingresses, please have a look at [this example](/docs/examples/customization/custom-headers).
 
 ```console
 $ kubectl apply -f ingress.yaml