ref-manual: document new github-releases class

Newly added class in 4.1.

(From yocto-docs rev: 391750e417d7a6b88222e03aa0a57ea87d9f618a)

Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/documentation/ref-manual/variables.rst b/documentation/ref-manual/variables.rst
index 857cc01de4..e7b8709e7d 100644
--- a/documentation/ref-manual/variables.rst
+++ b/documentation/ref-manual/variables.rst
@@ -2768,6 +2768,13 @@ system and gives an overview of their function and contents.
       The directory in which a local copy of a Git repository is stored
       when it is cloned.
 
+   :term:`GITHUB_BASE_URI`
+      When inheriting the :ref:`github-releases <ref-classes-github-releases>`
+      class, specifies the base URL for fetching releases for the github
+      project you wish to fetch sources from. The default value is as follows::
+
+         GITHUB_BASE_URI ?= "https://github.com/${BPN}/${BPN}/releases/"
+
    :term:`GLIBC_GENERATE_LOCALES`
       Specifies the list of GLIBC locales to generate should you not wish
       to generate all LIBC locals, which can be time consuming.