Doc: Add instruction to access service from host to crc instance

fixes: #4398

docs/modules/getting_started/pages/networking.adoc

@@ -9,6 +9,8 @@ include::partial$ref_reserved-ip-subnets.adoc[leveloffset=+1]
 
 include::partial$proc_starting-behind-proxy.adoc[leveloffset=+1]
 
+include::partial$proc_connecting-to-host.adoc[leveloffset=+1]
+
 include::partial$proc_setting-up-remote-server.adoc[leveloffset=+1]
 
 include::partial$proc_connecting-to-remote-instance.adoc[leveloffset=+1]

docs/modules/getting_started/partials/proc_connecting-to-host.adoc

@@ -0,0 +1,35 @@
+= Accessing services running on your host from {prod}
+
+When you run services on your host, you can configure {prod} to access these services.
+
+.Prerequisites
+* You have a service which is running on your host and want to consume it with {prod}.
+* You are using the user mode network. On {mac} and {msw} this is the default behavior.
+
+
+.Procedure
+. Enable accessing services from host to {prod}:
++
+----
+$ crc config set host-network-access true
+----
+
+. Verify that the {prod} configuration uses user network mode and enables host network access:
++
+----
+$ crc config view
+[...]
+- network-mode                          : user
+- host-network-access                   : true
+[...]
+----
+
+. If {prod} instance is already running then restart it (stop => start), otherwise just start it.
++
+----
+$ crc stop && crc start
+----
+
+.Verification
+Assuming your service is running on the host on port `8080`, to access
+it from the {prod} instance, use `host.crc.testing:8080`.