Api security - edit documentation for site configuration (#217)

* API Security - edit documentation for api_security_site_config.html.markdown - change :"DEFAULT" to "BLOCK_IP"

* API Security - api_security_site_config documentation edit, omit empty values in `is_automatic_discovery_api_integration_enabled`

Author: katrinpolit

incapsula/client_api_security_site_config.go

@@ -31,7 +31,7 @@ type ApiSecuritySiteConfigPostResponse struct {
 
 type ApiSecuritySiteConfigPostPayload struct {
 	ApiOnlySite                               bool             `json:"apiOnlySite"`
-	IsAutomaticDiscoveryApiIntegrationEnabled bool             `json:"isAutomaticDiscoveryApiIntegrationEnabled"`
+	IsAutomaticDiscoveryApiIntegrationEnabled bool             `json:"isAutomaticDiscoveryApiIntegrationEnabled,omitempty"`
 	NonApiRequestViolationAction              string           `json:"nonApiRequestViolationAction"`
 	ViolationActions                          ViolationActions `json:"violationActions"`
 }

website/docs/r/api_security_site_config.html.markdown

@@ -31,7 +31,7 @@ The following arguments are supported:
 
 * `site_id` - (Required) Numeric identifier of the site to operate on.
 * `is_automatic_discovery_api_integration_enabled` - (Optional) Parameter shows whether automatic API discovery API
-  Integration is enabled.
+  Integration is enabled. This field should not be set if `API Security Add-On` subscription is not available.
 * `invalid_url_violation_action` - (Optional) The action taken when an invalid URL Violation occurs. Possible
   values: `ALERT_ONLY` (default value), `BLOCK_REQUEST`, `BLOCK_USER`, `BLOCK_IP`, `IGNORE`.
 * `invalid_method_violation_action` - (Optional) The action taken when an invalid method Violation occurs. Possible