manuals: add missing references to classes

Sometimes fixing line length in modified paragraphs too.

[YOCTO #14508]
Reported-by: Quentin Schulz <foss@0leil.net>
(From yocto-docs rev: 885b60f5540849bf19240a01a77efce1d1b5d9f0)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/documentation/migration-guides/migration-1.5.rst b/documentation/migration-guides/migration-1.5.rst
index 70a087ff1a..b47980dc67 100644
--- a/documentation/migration-guides/migration-1.5.rst
+++ b/documentation/migration-guides/migration-1.5.rst
@@ -130,6 +130,11 @@ The following directory changes exist:
    it easier to delete :term:`TMPDIR` and preserve the build history.
    Additionally, data for produced SDKs is now split by :term:`IMAGE_NAME`.
 
+-  When :ref:`buildhistory <ref-classes-buildhistory>` is enabled, its output
+   is now written under the :term:`Build Directory` rather than :term:`TMPDIR`.
+   Doing so makes it easier to delete :term:`TMPDIR` and preserve the build
+   history. Additionally, data for produced SDKs is now split by :term:`IMAGE_NAME`.
+
 -  The ``pkgdata`` directory produced as part of the packaging process
    has been collapsed into a single machine-specific directory. This
    directory is located under ``sysroots`` and uses a machine-specific