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

Inspecione configuration.ipynb e as páginas de how-to-use-azureml/training identificadas na issue, com foco nos links “train within notebook” e “Train and hyperparameter tune on Iris Dataset with Scikit-learn”. Verifique os destinos pretendidos e atualize as referências quebradas para que os três links sejam resolvidos corretamente.

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