update docs for configuration_paramaters to explain what it actually is.

builder/vsphere/common/step_config_params.go

@@ -13,7 +13,8 @@ import (
 )
 
 type ConfigParamsConfig struct {
-	// Custom parameters.
+	// configuration_parameters is a direct passthrough to the VSphere API's
+	// ConfigSpec: https://pubs.vmware.com/vi3/sdk/ReferenceGuide/vim.vm.ConfigSpec.html
 	ConfigParams map[string]string `mapstructure:"configuration_parameters"`
 }
 

website/pages/partials/builder/vsphere/common/ConfigParamsConfig-not-required.mdx

@@ -1,4 +1,5 @@
 <!-- Code generated from the comments of the ConfigParamsConfig struct in builder/vsphere/common/step_config_params.go; DO NOT EDIT MANUALLY -->
 
--   `configuration_parameters` (map[string]string) - Custom parameters.
+-   `configuration_parameters` (map[string]string) - configuration_parameters is a direct passthrough to the VSphere API's
+    ConfigSpec: https://pubs.vmware.com/vi3/sdk/ReferenceGuide/vim.vm.ConfigSpec.html