[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7691/8267] ref-manual: Updated PREFERRED_PROVIDER variable

[Emmanuele Bassi <ebassi src gnome org>]

commit 574633641a249de648584a65b1a83775716e4e70
Author: Kristi Rifenbark <kristi rifenbark gmail com>
Date:   Wed Sep 6 16:07:16 2017 -0700

    ref-manual: Updated PREFERRED_PROVIDER variable
    
    Fixes [YOCTO #11762]
    Added a link from variable to new virtual providers
    section.
    
    (From yocto-docs rev: d87726cf4962ca093c63d23d9e04f41d448c9594)
    
    Signed-off-by: Kristi Rifenbark <kristi rifenbark gmail com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 documentation/ref-manual/ref-variables.xml |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 2576b3a..e2544f1 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -10544,6 +10544,8 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
      PREFERRED_PROVIDER_virtual/xserver = "xserver-xf86"
      PREFERRED_PROVIDER_virtual/libgl ?= "mesa"
                     </literallayout>
+                    For more information see:
+                    <link linkend='metadata-virtual-providers'>Metadata (Virtual Providers)</link>
                     <note>
                         If you set <filename>PREFERRED_PROVIDER</filename>
                         for a <filename>virtual/*</filename> item, then any