{dev,kernel,sdk}-manual: replace hardcoded release version with &DISTRO;

In the Docbook files we had DISTRO, but somehow it was lost during the
migration to Sphinx.

(From yocto-docs rev: d10bb13070039e17281fccc5c1a64b5bfed30543)

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

1 files changed, 2 insertions, 2 deletions

diff --git a/documentation/sdk-manual/sdk-extensible.rst b/documentation/sdk-manual/sdk-extensible.rst
index 10e4d20611..1a17da4f6e 100644
--- a/documentation/sdk-manual/sdk-extensible.rst
+++ b/documentation/sdk-manual/sdk-extensible.rst
@@ -47,7 +47,7 @@ Host` by running the ``*.sh`` installation script.
 You can download a tarball installer, which includes the pre-built
 toolchain, the ``runqemu`` script, the internal build system,
 ``devtool``, and support files from the appropriate
-:yocto_dl:`toolchain </releases/yocto/yocto-3.1.2/toolchain/>` directory within the Index of
+:yocto_dl:`toolchain </releases/yocto/yocto-&DISTRO;/toolchain/>` directory within the Index of
 Releases. Toolchains are available for several 32-bit and 64-bit
 architectures with the ``x86_64`` directories, respectively. The
 toolchains the Yocto Project provides are based off the
@@ -78,7 +78,7 @@ is the general form:
 
        release_version is a string representing the release number of the Yocto Project:
 
-                  3.1.2, 3.1.2+snapshot
+                  &DISTRO;, &DISTRO;+snapshot
 
 For example, the following SDK installer is for a 64-bit
 development host system and a i586-tuned target architecture based off