make the counter and gauges function different to reflect what they do

Author: atoulme

ibm-mq-metrics/docs/metrics.md

@@ -834,3 +834,5 @@
 |---|---|---|---|---|---|
 | `error.code` | string | The reason code associated with an error | `2038`; `2543`; `2009` | `Required` | ![Development](https://img.shields.io/badge/-development-blue) |
 | `ibm.mq.queue.manager` | string | The name of the IBM queue manager | `MQ1` | `Required` | ![Development](https://img.shields.io/badge/-development-blue) |
+
+

ibm-mq-metrics/src/main/java/io/opentelemetry/ibm/mq/WmqMonitor.java

@@ -109,7 +109,7 @@ public void run(QueueManager queueManager) {
       if (e.getCause() instanceof MQException) {
         MQException mqe = (MQException) e.getCause();
         String errorCode = String.valueOf(mqe.getReason());
-        producer.recordIbmMqConnectionErrors(
+        producer.addIbmMqConnectionErrors(
             1, Attributes.of(IBM_MQ_QUEUE_MANAGER, queueManagerName, ERROR_CODE, errorCode));
       }
     } finally {