"View an example" is a dead link

[noyainrain]

"View an example" on the start page is a dead link. Make it possible to create an example meeting.

[noyainrain]

Draft:

class Meetling:
    def create_example_meeting(self):
        """
        ..http:post:: /api/create-example-meeting

        Create a :ref:`Meeting` with an example agenda and return it.

        Useful to illustrate what Meetling is about.
        """

[noyainrain]

Fixed in a1f5fc9b8d170c8713578ffe11f6e7c4e1eab3f8 .