[6.6] 53f2b7fe3 Rename and relabel upgrading-trunk.rst to upgrading-6.6.rst

[Martin Blix Grydeland]

commit 53f2b7fe3cf69e400d2e4c3afabb083a41bb663a
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Mon Mar 15 14:41:55 2021 +0100

    Rename and relabel upgrading-trunk.rst to upgrading-6.6.rst

diff --git a/doc/sphinx/whats-new/upgrading-trunk.rst b/doc/sphinx/whats-new/upgrading-6.6.rst
similarity index 94%
rename from doc/sphinx/whats-new/upgrading-trunk.rst
rename to doc/sphinx/whats-new/upgrading-6.6.rst
index b820e9469..db577e2e2 100644
--- a/doc/sphinx/whats-new/upgrading-trunk.rst
+++ b/doc/sphinx/whats-new/upgrading-6.6.rst
@@ -3,11 +3,11 @@
 	SPDX-License-Identifier: BSD-2-Clause
 	See LICENSE file for full text of license
 
-.. _whatsnew_upgrading_CURRENT:
+.. _whatsnew_upgrading_6.6:
 
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-Upgrading to Varnish **$NEXT_RELEASE**
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%
+Upgrading to Varnish 6.6
+%%%%%%%%%%%%%%%%%%%%%%%%
 
 In general, this release should not come with relevant incompatibilies
 to the previous release 6.5.