Add notebook png and remove extraneous comments

Author: aviruthen

sagemaker-train/src/sagemaker/train/aws_batch/training_queued_job.py

@@ -271,7 +271,7 @@ def _construct_model_trainer_from_training_job_name(training_job_name: str) -> M
     # Step 3: Create ModelTrainer
     model_trainer = ModelTrainer(**init_params)
 
-    # Step 4: Set _latest_training_job (key insight!)
+    # Step 4: Set _latest_training_job
     model_trainer._latest_training_job = training_job
 
     return model_trainer

v3-examples/training-examples/aws_batch/sm-training-queues_getting_started_with_model_trainer.ipynb

@@ -298,7 +298,6 @@
     "        time.sleep(5)\n",
     "\n",
     "    # Print training job logs\n",
-    "    # job.get_estimator().logs()\n",
     "    model_trainer = job.get_model_trainer()\n",
     "    model_trainer.sagemaker_session.logs_for_job(model_trainer._latest_training_job.training_job_name, wait=True)\n",
     "\n",