dev-manual: minor grammar correction

(From yocto-docs rev: 4e06c7f08a36c54a7f14760e609058468fab112f)

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/dev-manual/building.rst b/documentation/dev-manual/building.rst
index 865d2e1b67..c90b3ad400 100644
--- a/documentation/dev-manual/building.rst
+++ b/documentation/dev-manual/building.rst
@@ -813,7 +813,7 @@ directory:
 
 #. *Using Local Files Only:* Inside your ``local.conf`` file, add the
    :term:`SOURCE_MIRROR_URL` variable, inherit the
-   :ref:`ref-classes-own-mirrors` class, and use the
+   :ref:`ref-classes-own-mirrors` class, and add the
    :term:`BB_NO_NETWORK` variable to your ``local.conf``::
 
       SOURCE_MIRROR_URL ?= "file:///home/your-download-dir/"