sphinx: ref-variables: use builtin sphinx glossary

Sphinx has a glossary directive. From the documentation:
This directive must contain a reST definition list with terms and
definitions. The definitions will then be referencable with the 'term'
role.

So anywhere in *any* manual, we can do :term:`VAR` to refer to an item
from the glossary, and create a link.

An HTML anchor is created for each term in the glossary, and can be
accessed as:
<link>/ref-variables.html#term-<NAME>

To convert to a glossary, we needed proper indentation (e.g. added 3
spaces to each line)

(From yocto-docs rev: af16cc4233ae9672698cf2fbb7bf0a78e461122e)

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

0 files changed, 0 insertions, 0 deletions