tab include test

testing...

Author: iRaindrop

docs/versioned/install/yaml-install/serving/install-serving-with-yaml.md

@@ -44,11 +44,9 @@ To install the Knative Serving component:
 Expand the following tabs for instructions on installing network layers. For an overview of network layer options, architecture, and configurations see [Configure Knative networking](../../../serving/config-network-adapters.md).
 
 {% include "netadapter-kourier.md" %}
-{% filter indent(width=4) %}
 {% include "netadapter-contour.md" %}
 {% include "netadapter-istio.md" %}
 {% include "netadapter-gatewayapi.md" %}
-{% endfilter %}
 
 ## Verify the installation