Add new parameter to reference module (theforeman#3913)

Author: bangelic

guides/common/modules/ref_global-parameters-for-registration.adoc

@@ -5,14 +5,18 @@ You can configure the following global parameters by navigating to *Configure* >
 
 * The `host_registration_insights` parameter is used in the `insights` snippet.
 If the parameter is set to `true`, the registration installs and enables the Red{nbsp}Hat Insights client on the host.
-If the parameter is set to `false`, it prevents {Project} and the Red{nbsp}Hat Insights client from uploading Inventory reports to your {RHCloud}.
+If the parameter is set to `false`, {Project} prevents the installation and registration of the Red{nbsp}Hat Insights client.
 ifdef::satellite[]
 The default value is `true`.
 endif::[]
 ifndef::satellite[]
 The default value is `false`.
 endif::[]
 When overriding the parameter value, set the parameter type to `boolean`.
+* The `host_registration_insights_inventory` parameter controls Inventory uploads.
+If the parameter is set to `true`, the host is included in the Insights Inventory report uploaded to the {RHCloud}. 
+If the parameter is set to `false`, the host is excluded from the Insights Inventory report upload.
+To upload minimal inventory data without registering the host with the Insights client, set the `host_registration_insights` parameter to `false` and set the `host_registration_insights_inventory` to `true`.
 * The `host_packages` parameter is for installing packages on the host.
 * The `host_registration_remote_execution` parameter is used in the `remote_execution_ssh_keys` snippet.
 If it is set to `true`, the registration enables remote execution on the host.