overview-manual/concepts.rst: mention PERSISTENT_DIR for user configuration

The PERSISTENT_DIR directory can also be customized to be shared, so
mention it in the list of configuration variables in local.conf.

(From yocto-docs rev: f3aa0e8f0d15f036b65253c1e0036eb7e1e16088)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/documentation/overview-manual/concepts.rst b/documentation/overview-manual/concepts.rst
index b34de4d361..99a8f02a03 100644
--- a/documentation/overview-manual/concepts.rst
+++ b/documentation/overview-manual/concepts.rst
@@ -277,6 +277,9 @@ in the ``meta-poky`` layer:
 -  *Shared State Directory:* Controlled by the
    :term:`SSTATE_DIR` variable.
 
+-  *Persistent Data Directory:* Controlled by the
+   :term:`PERSISTENT_DIR` variable.
+
 -  *Build Output:* Controlled by the
    :term:`TMPDIR` variable.