Click on "The current supported release is xxx" opens main page of specific release, instead of specific subpage

[Tomasz Wojciechowski]

- [x] This doc is inaccurate in this way: When I click "The current supported release is xxx" I'm expecting to see page e.g. about "Part 1: Creating your first Application Package" but for current release. Instead main page of current release is being opened.

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Release: 12.1.0.dev27 on 2017-09-27 09:23:23
SHA: ff9e055544cec75a4857580afe146a46ba8b68e1
Source: https://opendev.org/openstack/murano/src/doc/source/admin/appdev-guide/step-by-step/part1.rst
URL: https://docs.openstack.org/murano/latest/admin/appdev-guide/step-by-step/part1.html