Appends link to automation script to the test description.

def add_automation_link(testcase):
    """Appends link to automation script to the test description."""
    automation_link = (
        '<a href="{}">Test Source</a>'.format(testcase["automation_script"])
        if testcase.get("automation_script")
        else ""
    )
    testcase["description"] = "{}<br/>{}".format(testcase.get("description") or "", automation_link)