documentation: Simplify yocto_git links

The yocto_git external link directive is modified to include the
`/cgit/cgit.cgi` element of the URL so that we can simplify the links in
the text.

Manual links to git.yoctoproject.org are converted to use the yocto_git
directive where possible. Note that this directive can't be used in some
places such as example code.

(From yocto-docs rev: 3a8ba5dcc783411c73fe49fb217cbc4d6528d9a7)

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

documentation/toaster-manual/toaster-manual-reference.rst

@@ -25,8 +25,7 @@ A layer index is a web application that contains information about a set
 of custom layers. A good example of an existing layer index is the
 OpenEmbedded Layer Index. A public instance of this layer index exists
 at http://layers.openembedded.org. You can find the code for this
-layer index's web application at
-http://git.yoctoproject.org/cgit/cgit.cgi/layerindex-web/.
+layer index's web application at :yocto_git:`/layerindex-web/`.
 
 When you tie a layer source into Toaster, it can query the layer source
 through a
@@ -83,9 +82,8 @@ index.
 
 In the previous section, the code for the OpenEmbedded Metadata Index
 (i.e. http://layers.openembedded.org) was referenced. You can use
-this code, which is at
-http://git.yoctoproject.org/cgit/cgit.cgi/layerindex-web/, as a
-base to create your own layer index.
+this code, which is at :yocto_git:`/layerindex-web/`, as a base to create
+your own layer index.
 
 Use the Administration Interface
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -165,14 +163,13 @@ As shipped, Toaster is configured to work with the following releases:
 -  *Yocto Project &DISTRO; "&DISTRO_NAME;" or OpenEmbedded "&DISTRO_NAME;":*
    This release causes your Toaster projects to build against the head
    of the &DISTRO_NAME_NO_CAP; branch at
-   https://git.yoctoproject.org/cgit/cgit.cgi/poky/log/?h=&DISTRO_NAME_NO_CAP; or
-   http://git.openembedded.org/openembedded-core/commit/?h=&DISTRO_NAME_NO_CAP;.
+   :yocto_git:`/poky/log/?h=&DISTRO_NAME_NO_CAP;` or
+   :oe_git:`/openembedded-core/commit/?h=&DISTRO_NAME_NO_CAP;`.
 
 -  *Yocto Project "Master" or OpenEmbedded "Master":* This release
    causes your Toaster Projects to build against the head of the master
    branch, which is where active development takes place, at
-   https://git.yoctoproject.org/cgit/cgit.cgi/poky/log/ or
-   http://git.openembedded.org/openembedded-core/log/.
+   :yocto_git:`/poky/log/` or :oe_git:`/openembedded-core/log/`.
 
 -  *Local Yocto Project or Local OpenEmbedded:* This release causes your
    Toaster Projects to build against the head of the ``poky`` or

documentation/toaster-manual/toaster-manual-setup-and-use.rst

@@ -561,8 +561,8 @@ the same clone you are using to run Toaster. Unless you manually update
 this clone, your builds will always use the same Git revision.
 
 If you select any of the other release options, Toaster will fetch the
-tip of your selected release from the upstream `Yocto Project
-repository <https://git.yoctoproject.org>`__ every time you run a build.
+tip of your selected release from the upstream :yocto_git:`Yocto Project
+repository <>` every time you run a build.
 Fetching this tip effectively means that if your selected release is
 updated upstream, the Git revision you are using for your builds will
 change. If you are doing development locally, you might not want this