Small fixes for reported issues (#109)

Author: gguuss

README.md

@@ -86,6 +86,19 @@ console, that configuration will be reflrected on the device.
 Before the examples will work, you will also need to configure the root
 certificate as described in the configuration headers.
 
+After you have published telemetry data, you can read it from the PubSub topic
+using the [Google Cloud SDK](https://cloud.google.com/sdk). With the SDK installed,
+run the following command to create a :
+
+```
+gcloud pubsub subscriptions create <your-subscription-name> --topic=<your-iot-pubsub-topic>
+```
+
+Then read the telemetry messages:
+```
+gcloud pubsub subscriptions pull --limit 500 --auto-ack <your-subscription-name>
+```
+
 ## Notes on the certificate
 
 The [root certificate from Google](https://pki.goog/roots/pem) is used to verify communication to

library.properties

@@ -1,5 +1,5 @@
 name=Google Cloud IoT Core JWT
-version=1.1.5
+version=1.1.6
 author=Vladimir Korukov <mrvladimir@gusclass.com>
 maintainer=Gus Class <github@gusclass.com>
 sentence=Demonstrates JWT generation for connecting Arduino clients to Google Cloud IoT Core.

src/CloudIoTCoreMqtt.cpp

@@ -23,7 +23,7 @@ void messageReceived(String &topic, String &payload);
 // MQTT common functions
 ///////////////////////////////
 CloudIoTCoreMqtt::CloudIoTCoreMqtt(
-    MQTTClient *&_mqttClient, Client *&_netClient, CloudIoTCoreDevice *&_device){
+    MQTTClient *_mqttClient, Client *_netClient, CloudIoTCoreDevice *_device){
   this->mqttClient = _mqttClient;
   this->netClient = _netClient;
   this->device = _device;

src/CloudIoTCoreMqtt.h

@@ -35,7 +35,7 @@ class CloudIoTCoreMqtt {
     CloudIoTCoreDevice *device;
 
   public:
-    CloudIoTCoreMqtt(MQTTClient *&mqttClient, Client *&netClient, CloudIoTCoreDevice *&device);
+    CloudIoTCoreMqtt(MQTTClient *mqttClient, Client *netClient, CloudIoTCoreDevice *device);
 
     void startMQTT();
     void publishTelemetry(String data);