Dashboard submission page Sphinx syntax not being rendered correctly

The [Dashboard submission page](https://itk.org/ITKExamples/Documentation/Contribute/DashboardSubmission.html) does not render correctly the
```
.. code-block:: bash
```
bash code blocks.

Also, the backward slashes in the commands concerning Windows systems are being stripped.

Source file: [here](https://github.com/InsightSoftwareConsortium/ITKExamples/blob/master/Documentation/Contribute/DashboardSubmission.rst).

Open Documentation/Contribute/DashboardSubmission.rst and compare it with the rendered Dashboard submission page. Check the bash code-block rendering and the Windows command backslashes; done means both display correctly in the generated documentation.

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