docs: fix heading styles in upgrading page

The CentOS Stream 8 section used the wrong heading style, which broke
the rest of the document, making the other headings the wrong sizes.

Change-Id: I8015c905074016c53c803ce40a299ad5c911ada6
This commit is contained in:
Mark Goddard 2021-08-31 14:20:13 +01:00
parent 37524ff2a6
commit c2b9dd81de

View File

@ -7,7 +7,7 @@ Upgrading
This section describes how to upgrade from one OpenStack release to another.
CentOS Stream 8
---------------
===============
The Wallaby release adds support for CentOS Stream 8 as a host operating
system. CentOS Stream 8 support will also be added to a Victoria stable