sphinx: add links for Yocto project website

In DocBook, variables are used to create custom links (note that it is
not consistent everywhere, since some web addresses are still
hardcoded), such as YOCTO_HOME_URL, YOCTO_GIT_URL, YOCTO_WIKI_URL,
YOCTO_BUGS_URL and YOCTO_DL_URL..

In Sphinx they are replaced with extlinks.

(From yocto-docs rev: d25f3095a9d29a3355581d0743f27b2a423ad580)

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/ref-manual/ref-classes.rst b/documentation/ref-manual/ref-classes.rst
index 4b4f3bac5a..ae5f0e40d1 100644
--- a/documentation/ref-manual/ref-classes.rst
+++ b/documentation/ref-manual/ref-classes.rst
@@ -2749,7 +2749,7 @@ To use this class, you need to define a number of variables:
 These variables list alternative commands needed by a package, provide
 pathnames for links, default links for targets, and so forth. For
 details on how to use this class, see the comments in the
-```update-alternatives.bbclass`` <&YOCTO_GIT_URL;/cgit/cgit.cgi/poky/tree/meta/classes/update-alternatives.bbclass>`__
+:yocto_git:`update-alternatives.bbclass </cgit/cgit.cgi/poky/tree/meta/classes/update-alternatives.bbclass>`
 file.
 
 .. note::