ref-manual: More edits to the EXTRA_IMAGE_FEATURES variable.

Inserted parallel wording so the description is more similiar
to IMAGE_FEATURES description.

(From yocto-docs rev: 535a9676ac9d2a5778fb6978027f018e83460157)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 0f86def5ca..acb1446386 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -951,6 +951,8 @@ Core layer for images cannot be removed
                     Typically, you configure this variable in your
                     <filename>local.conf</filename> file, which is found in the
                     <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>.
+                    Although you can use this variable from within a recipe,
+                    best practices dictate that you do not.
                     <note>
                         Use the
                         <link linkend='var-IMAGE_FEATURES'><filename>IMAGE_FEATURES</filename></link>