Broken links in the site

There are some broken links (404 error) in the site. Please kindly update the contents/links:

"**train within notebook**" link is broken in the following pages:
1) https://github.com/Azure/MachineLearningNotebooks/blob/master/configuration.ipynb
in "Next steps" paragraph
2) https://github.com/Azure/MachineLearningNotebooks/tree/master/how-to-use-azureml/training
"1. Train within notebook"

"6. **Train and hyperparameter tune on Iris Dataset with Scikit-learn**" link is broken in the following page:
https://github.com/Azure/MachineLearningNotebooks/tree/master/how-to-use-azureml/training

Esamina configuration.ipynb e le pagine how-to-use-azureml/training identificate nell’issue, concentrandoti sui link “train within notebook” e “Train and hyperparameter tune on Iris Dataset with Scikit-learn”. Verifica le destinazioni previste e aggiorna i riferimenti non funzionanti in modo che tutti e tre i link vengano risolti correttamente.

Scritto dal modello di indicizzazione a partire dal testo della issue.