docs: fix cancellation example (#129)

Author: vanyae-cqc

examples/basics/getting_started.ipynb

@@ -429,7 +429,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Cancel job"
+    "## Cancel job\n",
+    "\n",
+    "Jobs submitted to quantum backends can be requested to be cancelled by Nexus, however please note that depending on the status of the job cancellation cannot be guaranteed. Please check the job status once the cancellation request has been made to make sure."
    ]
   },
   {
@@ -438,6 +440,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "# Lets start a job (please note this example assumes you have access to the H1-1E device)\n",
     "ref_execute_job1 = qnx.start_execute_job(\n",
     "    circuits=[ref_compiled_circuit],\n",
     "    n_shots=[100],\n",
@@ -461,7 +464,17 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "config = qnx.QuantinuumConfig(device_name=\"H1-Emulator\", attempt_batching=True)"
+    "qnx.jobs.cancel(ref_execute_job1)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Double check the job is cancelled (this might take some time).\n",
+    "qnx.jobs.status(ref_execute_job1)"
    ]
   },
   {