Update doc on SignalWithStart to support WorkflowIDReusePolicy (#657)

Author: vancexu

client/client.go

@@ -107,8 +107,9 @@ type (
 		// SignalWithStartWorkflow sends a signal to a running workflow.
 		// If the workflow is not running or not found, it starts the workflow and then sends the signal in transaction.
 		// - workflowID, signalName, signalArg are same as SignalWorkflow's parameters
-		// - workflow, workflowArgs are same as StartWorkflow's parameters
-		// - options.WorkflowIDReusePolicy will be ignored, and WorkflowIDReusePolicyAllowDuplicate will be used as the policy
+		// - options, workflow, workflowArgs are same as StartWorkflow's parameters
+		// Note: options.WorkflowIDReusePolicy is default to WorkflowIDReusePolicyAllowDuplicate in this API;
+		// while in StartWorkflow/ExecuteWorkflow APIs it is default to WorkflowIdReusePolicyAllowDuplicateFailedOnly.
 		// The errors it can return:
 		//  - EntityNotExistsError, if domain does not exist
 		//  - BadRequestError

internal/client.go

@@ -98,8 +98,9 @@ type (
 		// SignalWithStartWorkflow sends a signal to a running workflow.
 		// If the workflow is not running or not found, it starts the workflow and then sends the signal in transaction.
 		// - workflowID, signalName, signalArg are same as SignalWorkflow's parameters
-		// - workflow, workflowArgs are same as StartWorkflow's parameters
-		// - options.WorkflowIDReusePolicy will be ignored, and WorkflowIDReusePolicyAllowDuplicate will be used as the policy
+		// - options, workflow, workflowArgs are same as StartWorkflow's parameters
+		// Note: options.WorkflowIDReusePolicy is default to WorkflowIDReusePolicyAllowDuplicate in this API;
+		// while in StartWorkflow/ExecuteWorkflow APIs it is default to WorkflowIdReusePolicyAllowDuplicateFailedOnly.
 		// The errors it can return:
 		//  - EntityNotExistsError, if domain does not exist
 		//  - BadRequestError