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, 3 insertions, 3 deletions

diff --git a/documentation/kernel-dev/kernel-dev-common.rst b/documentation/kernel-dev/kernel-dev-common.rst
index 813f4047e2..aa9f77de86 100644
--- a/documentation/kernel-dev/kernel-dev-common.rst
+++ b/documentation/kernel-dev/kernel-dev-common.rst
@@ -286,7 +286,7 @@ section:
 5. *Create a Local Copy of the Kernel Git Repository:* You can find Git
    repositories of supported Yocto Project kernels organized under
    "Yocto Linux Kernel" in the Yocto Project Source Repositories at
-   ` <&YOCTO_GIT_URL;>`__.
+   :yocto_git:`/`.
 
    For simplicity, it is recommended that you create your copy of the
    kernel Git repository outside of the
@@ -1404,7 +1404,7 @@ To help you use your own sources, the Yocto Project provides a
 linux-yocto custom recipe (``linux-yocto-custom.bb``) that uses
 ``kernel.org`` sources and the Yocto Project Linux kernel tools for
 managing kernel Metadata. You can find this recipe in the ``poky`` Git
-repository of the Yocto Project `Source Repository <&YOCTO_GIT_URL;>`__
+repository of the Yocto Project :yocto_git:`Source Repository <>`
 at: poky/meta-skeleton/recipes-kernel/linux/linux-yocto-custom.bb
 
 Here are some basic steps you can use to work with your own sources:
@@ -1535,7 +1535,7 @@ Linux kernel sources, if you need an external kernel module, the
 create your own out-of-tree Linux kernel module recipe.
 
 This template recipe is located in the ``poky`` Git repository of the
-Yocto Project `Source Repository <&YOCTO_GIT_URL;>`__ at:
+Yocto Project :yocto_git:`Source Repository <>` at:
 poky/meta-skeleton/recipes-kernel/hello-mod/hello-mod_0.1.bb
 
 To get started, copy this recipe to your layer and give it a meaningful