storyboard "report a bug link"

[Andreas Jaeger]

When reporting bugs with openstackdocstheme to storyboard, we just link to the project page - and don't create a full report.

From http://lists.openstack.org/pipermail/openstack-discuss/2018-November/000272.html:

Since https://review.openstack.org/526219 merged in February, the
new story creation URL allows passing HTTP GET parameters which can
include default Story title and description content along with a
project ID for the initial task. This could be used with some
templating to inject the file path as part of a suggested
description.

https://storyboard.openstack.org/#!/story/new?project_id=456&title=foo&description=bar%20baz

It could stand to have a project_name parameter so that something
like project_name=openstack-infra/storyboard would be possible
rather than the current project_id=456 construct, but I don't think
that will be tough to add if someone's interested in using it.

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We need the project_name here - since projects are configured with just project_name in the theme now.