Add Incident Notification Template Public Docs (#3332)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generator/schemas/v2/openapi.yaml

@@ -633,25 +633,30 @@ func NewConfiguration() *Configuration {
 			"v2.GetDataDeletionRequests":                 false,
 			"v2.CreateIncident":                          false,
 			"v2.CreateIncidentIntegration":               false,
+			"v2.CreateIncidentNotificationTemplate":      false,
 			"v2.CreateIncidentTodo":                      false,
 			"v2.CreateIncidentType":                      false,
 			"v2.DeleteIncident":                          false,
 			"v2.DeleteIncidentIntegration":               false,
+			"v2.DeleteIncidentNotificationTemplate":      false,
 			"v2.DeleteIncidentTodo":                      false,
 			"v2.DeleteIncidentType":                      false,
 			"v2.GetIncident":                             false,
 			"v2.GetIncidentIntegration":                  false,
+			"v2.GetIncidentNotificationTemplate":         false,
 			"v2.GetIncidentTodo":                         false,
 			"v2.GetIncidentType":                         false,
 			"v2.ListIncidentAttachments":                 false,
 			"v2.ListIncidentIntegrations":                false,
+			"v2.ListIncidentNotificationTemplates":       false,
 			"v2.ListIncidents":                           false,
 			"v2.ListIncidentTodos":                       false,
 			"v2.ListIncidentTypes":                       false,
 			"v2.SearchIncidents":                         false,
 			"v2.UpdateIncident":                          false,
 			"v2.UpdateIncidentAttachments":               false,
 			"v2.UpdateIncidentIntegration":               false,
+			"v2.UpdateIncidentNotificationTemplate":      false,
 			"v2.UpdateIncidentTodo":                      false,
 			"v2.UpdateIncidentType":                      false,
 			"v2.CreateAWSAccount":                        false,