update create rule message

docs/en_US/edgex/edgex_rule_engine_tutorial.md

@@ -185,7 +185,7 @@ In the running Kuiper instance, and execute following command.
 $ bin/cli create rule rule1 -f rule.txt
 Connecting to 127.0.0.1:20498...
 Creating a new rule from file rule.txt.
-Rule rule1 was created, please use 'cli getstatus rule $rule_name' command to get rule status.
+Rule rule1 was created successfully, please use 'cli getstatus rule rule1' command to get rule status.
 ```
 
 ------

docs/zh_CN/edgex/edgex_rule_engine_tutorial.md

@@ -181,7 +181,7 @@ curl -X POST \
 # bin/cli create rule rule1 -f rule.txt
 Connecting to 127.0.0.1:20498...
 Creating a new rule from file rule.txt.
-Rule rule1 was created, please use 'cli getstatus rule $rule_name' command to get rule status.
+Rule rule1 was created successfully, please use 'cli getstatus rule rule1' command to get rule status.
 ```
 
 ------

xstream/server/server/rest.go

@@ -160,7 +160,7 @@ func rulesHandler(w http.ResponseWriter, r *http.Request) {
 			handleError(w, fmt.Errorf("Create rule error : %s.", err), http.StatusBadRequest, logger)
 			return
 		} else {
-			result = fmt.Sprintf("Rule %s was created, please use 'cli getstatus rule $rule_name' command to get rule status.", r.Id)
+			result = fmt.Sprintf("Rule %s was created successfully.", r.Id)
 		}
 		//Start the rule
 		rs, err := createRuleState(r)

xstream/server/server/rpc.go

@@ -80,7 +80,7 @@ func (t *Server) CreateRule(rule *common.RuleDesc, reply *string) error {
 	if err != nil {
 		return fmt.Errorf("Create rule error : %s.", err)
 	} else {
-		*reply = fmt.Sprintf("Rule %s was created, please use 'cli getstatus rule $rule_name' command to get rule status.", rule.Name)
+		*reply = fmt.Sprintf("Rule %s was created successfully, please use 'bin/cli getstatus rule %s' command to get rule status.", rule.Name, rule.Name)
 	}
 	//Start the rule
 	rs, err := createRuleState(r)